Stephanie Houng
Sake’s Secret: The Transformative Magic of Fermented Rice in Skincare
Explore the history behind the TikTok fame and time-proven benefits of this skincare phenomenon
Unless you’ve been cozying up under a rock lately, you’ve probably caught wind of the beauty buzz surrounding 'rice water' and 'fermented rice water,' particularly their purported miracles for hair and skin. Perhaps you've even ventured into a DIY recipe or two, all in the name of luscious locks and glowing skin.
Now, maybe you found some success with regular rice water on your hair, but what about that funky-smelling potion quietly "fermenting" away on your countertop or in your fridge? Is it the real deal, and will it genuinely unlock the benefits you're dreaming of? (Spoiler alert: not exactly, but don’t worry, we’ll let you in on how to whip up a true batch of fermented rice water at home in this blog post!)
To really get to the heart of it, we’re about to embark on a journey back to the origins of this fascinating beauty trend. So, buckle up, beauty buffs, we’re going for a little ride through beauty history.
Table of Content
- What is Fermented Rice Water?
- The History of Beauty in Japan
- The Sake Master's Legendary Youthful Hands
- How is Sake Made in Sake Breweries
- Sake Kasu: The Hidden Gem You Haven't Heard of Yet
- The Benefits of Sake Fermented Rice Water
- Real Skincare Results from Sake Kasu
- DIY Tutorial: How to Make Fermented Rice Water—The Real Way
Part 1:
What is Fermented Rice Water?
The unsung hero behind the trend
Fermented rice water isn't just another modern beauty fad that sprung to life out of nowhere in recent years. This skincare gem has deep roots in Japan, spanning back not just decades, but centuries!
Turns out, today's beauty influencers can take a seat, because ancient Japanese skincare aficionados had this secret up their sleeves for ages. Curious about this timeless ingredient that's bestowed people with smooth, radiant skin throughout history?
Well, it's none other than Sake, Japan's iconic rice wine!
What is Sake? 🍶
Also known as Japanese rice wine, this ancient brew isn't just cherished in traditional settings but is also making a major comeback among modern enthusiasts, including the likes of Brooklyn Beckham.
But Sake isn’t just a delightful drink; it's rich in enzymes and amino acids that benefit the skin. Today, it's been marketed under the hip but vague moniker "fermented rice water," but its use in skincare isn't new. In fact, it was first integrated into modern commercial skincare in the 70s, and its roots in Japanese beauty rituals go back a millennium!
So, what makes Sake the ultimate secret weapon for skincare enthusiasts? Could indulging in Sake daily be the key to achieving a radiant complexion?
Join us as we unravel the fascinating history of rice-derived beauty from Japan, explore the powerful impact of koji fermentation, and dive into the multifaceted world of Sake – the quintessential Japanese ingredient with surprising benefits for skin and general health.
We'll delve into the remarkable benefits that have cemented its status as a beauty mainstay in Japan for centuries.
Finally, we'll uncover a little-known, hidden gem byproduct of Sake – a cult beauty secret cherished by the Japanese but still yet to be discovered outside its borders, and how you can incorporate into your skincare routine to enjoy all the incredible skin-enhancing properties of Sake-fermented rice.
The youthful secret of the Sake brewer's hands has been well-established knowledge in Japan for centuries. And here's the reason: Tojis are hands-on with the sake brewing process, immersing their hands in the fermenting rice water daily.
Part 2:
The History of Beauty in Japan
Ancient Beauty
In ancient times, there was a long period when Japan derived much of it's cultural inspiration from the empire of China.
Then beginning with the Heian period in 794 AD, Japan began to evolve away from Chinese influences and explore and develop its own unique culture, with the Heian aristocracy leading many of the trends.
Beauty in Japan started to shift from China's opulent and extravagant style to a more understated elegance. And the Heian people turned to natural resources to enhance and strengthen their natural assets.
The Tale of Genji
Written a 1000 ago, 'Tales of Genji' is often hailed as the world's first novel, and get this—it was penned by a woman, the talented Murasaki Shikibu! Yes, really! The world's first novel was written by a woman. 💁🏻♀️
Within its pages, this epic classic documented the beauty standards of its era: women were admired for their long, glossy hair that flowed and shimmered like their kimonos made of silk.
How did they maintain such lustrous locks without the help of modern-day salons and glamorous blow outs?
The answer is rice water!
The savvy Heian court ladies knew the secret sauce for fabulous hair was the magical rice water left over from washing rice, which they called Yu-Su-Ru.
They rinsed or combed the nutrient-packed water through their locks to get irresistibly silky and strong tresses.
Since the dawn of civilization, women have perfected the ancient ritual of the epic hair flip.
Rice Water For Skin
When it came to skincare, Japanese women were ahead of their time too, focusing on maintaining healthy skin and radiance. In a time without dermatologists, the Japanese were all about prevention over cure. Even with makeup, they preferred a light touch to enhance their beauty. They believed that when the skin is properly nourished, you only need makeup to accentuate your features rather than mask blemishes.
In fact, their interpretation of "foundation" differed from the Western reference to liquid powder. To them, “foundation” refers to the natural health and radiance of bare skin, which sets the foundation for a flawless look, with or without makeup.
As a result, they were particular about their skincare routine and placed great importance on the first step of their routine - cleansing. For the Japanese, this crucial step was much more than about removing dirt and other impurities.
“The Japanese believe when the skin is properly nourished, you only need makeup to accentuate your features rather than mask blemishes.”
It was a crucial part of the skincare ritual that involved polishing, smoothing, softening, and brightening the skin. To achieve these benefits, they relied on ingredients that could deliver results.
One of the ingredients they used was rice bran powder (米ぬか komenuka) in a sachet to cleanse the body. This powerful combination not only removed dirt and grime but also improved skin texture and brightened the skin.
Even from the Edo period they knew the importance of not only using products to clean themselves but to look for ingredients that had added skincare benefits.
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Komenuka Spa: The Revitalizing Power of Rice Bran Powder
Find All Our Articles in Our Ultimate Rice Water Guide Content Hub
The Research Into Sake's Skin Benefits
The effectiveness of Sake for skincare has been widely recognized in Japan for centuries. In a study published in 2010, researchers noted the historical context of Sake on skin health in Japan:
"Japanese people have experienced that the ingestion of sake has positive effects on the skin, and women living in the northern region of Japan, where high amounts of sake are consumed, have a better complexion than those living in other areas of Japan."1
But what did the science say about the benefits? Because without the scientific evidence behind the purported benefits, we're just splashing our faces with ancient beauty gossip.
The skincare benefits of Sake were first verified back in the 1970s, as Japan's booming economy fueled a growing desire for innovative skincare solutions.
Japanese women, with their age-old beauty rituals and discerning skincare standards, were at the forefront of this quest, seeking products that combined tradition with modern efficacy.
In response, a team of scientists, commissioned by SK-II, went forth to investigate the age-old wisdom of the Toji’s inexplicably youthful hands and Sake's potential to rejuvenate and nourish the skin.
“Women living in the northern region of Japan, where high amounts of sake are consumed, have a better complexion than those living in other areas of Japan.”
Who are the Toji? What's SK-II? And what's the story behind the Toji's hands, which were found to be radiant and youthful in contrast with their naturally aged faces? Read on to find out.
1 Harada, Naoaki & Fu, Yukiko & Kurihara, Hiroki & Nakagata, Naomi & Okajima, Kenji. (2010). Effects of Topical Application of α-D-Glucosylglycerol on Dermal Levels of Insulin-Like Growth Factor-I in Mice and on Facial Skin Elasticity in Humans. Bioscience, biotechnology, and biochemistry. 74. 759-65. 10.1271/bbb.90797.
Part 3:
The Story Behind the "Fountain of Youth" Elixir
How the youthful hands of old Sake brewers sparked the birth of a legacy skincare brand
The Sake Master's Legendary Youthful Hands
A Toji overseeing the fermentation progress from the shubo to moromi stage of Sake brewing.
A Toji overseeing the fermentation progress from the shubo to moromi stage of Sake brewing.
Meet the Toji (蔵人) – Japan's master sake brewers are revered craftsmen whose expertise and intuition in sake production have been honed over many years. That's why you'll often find the Toji to be older, seasoned individuals with a rich background in the sake industry.
But here's something intriguing: Despite their age, their hands always appear mysteriously radiant and youthful – quite the contrast to their naturally weathered faces. This little quirk about the Toji has turned into somewhat of a legend over time.
The sugidama or "cedar ball," is a traditional symbol found at the entrance of sake breweries. It signifies that fresh sake is available for purchase.
Now, you might have heard a repeated narrative on many blogs claiming the discovery of the Sake brewer's radiant hands and the perks of fermented rice water was some serendipitous accident. Well, that's a great story, but let's set the record straight.
This isn't a recent revelation. The youthful secret of the Sake brewer's hands has been well-established knowledge in Japan for centuries. And here's the reason: Tojis are hands-on (pun intended!) with the sake brewing process, immersing their hands in fermenting rice water daily. So, it's no wonder that in Japan, folks believed that their glowing hands were the result of this daily dose of nutrient-packed Sake.
The sugidama or "cedar ball," is a traditional symbol found at the entrance of sake breweries. It signifies that fresh sake is available for purchase.
For centuries, this enduring Japanese lore existed without concrete evidence. Then, in the 70s, technological leaps in Japan provided the tools to put the wonders of Sake under the scientific lens. And there it was–the truth behind Sake's magic was, at last, unveiled and validated.
“It's been known that the Toji maintained their youthful, dewy hands due to their daily exposure to the nutrient-dense, fermenting rice while working on the sake brewing process.”
SK-II: The Pioneers of Fermented Rice Skincare
Back in the groovy '70s, Japan was riding high on an economic wave, and women were on a quest to keep their youthful charm and turn back the clock. SK-II, at that time a budding skincare brand, assembled a team of Japanese scientists and gave them a fascinating challenge: uncover the secret to the elusive "fountain of youth."
The team of scientists scoured every nook and cranny in their mission to find this magical ingredient, even drawing inspiration from international sources. But in the end, it was the centuries-old rumor of the Toji's youthful hands that plucked at their curiosity.
The team decided to get to the bottom of the mysterious connection between Sake and the Toji's flawless skin. The researchers conducted a thorough investigation that eventually led them to the discovery of a concoction of skin-loving compounds hidden within Sake.
SK-II extracted the compounds, which they trademarked as Pitera. This remarkable Sake-derived elixir contained over 50 micro-nutrients that held the key to SK-II's transformative effects on the skin.
Fast forward to today, and these compounds have become the talk of the town, making waves not only in J-beauty, but also in K-beauty and Western skincare products.
This groundbreaking research didn't just confirm what the Japanese people had long believed about Sake's benefits for the skin; it also revealed the immense capability of Sake to boost and maintain youthful radiance.
This incredible discovery was a game-changer in the beauty industry, catapulting SK-II and its Pitera-infused lotions and serums into the spotlight.
It also solidified Sake as a tried-and-true ingredient that continues to work its wonders to this very day, helping stars like Cate Blanchett, Chloe Grace Moretz, and Simone Biles maintain their stunning looks!
Read more about the fascinating story of SK-II and discovery of Pitera.
INÉ Skin Nutrient Bar: Your Key to Unlocking the Ageless Beauty of Fermented Rice Water!
Introducing the INÉ Skin Nutrient Bar
An Artisan Soap Bar Made with Japanese Sake
Immerse yourself in the transformative power of fermented rice with the Skin Nutrient Bar, meticulously crafted with 100% organic Sake Kasu, a legendary secret from ancient Japanese skincare rituals.
Each bar, lovingly crafted to preserve the full, potent benefits of Sake Kasu, is designed to cleanse, nourish, and rejuvenate your skin from head to toe—all in the meditative mist of your shower. Just as the Toji's hands glow from daily immersion in sake, your skin too can embrace the radiant benefits of sake.
- Free from Harmful Additives
- Vegan Friendly
- Non-Comedogenic
- Safe For All Skin Types
- No Artificial Coloring or Fragrance
Part 4:
How Sake is Made
the journey of the grain
1Rice, Rice, Baby
Quality sake fermented rice starts with... you guessed it, quality rice! Sake's rice excellence stems from Japan's crisp winters, pristine mountain water, and the farmers' steadfast commitment to maintaining high cultivation standards.
2Polishing Perfection
Sake rice is meticulously polished to the core until it resembles small white beads, a key step to produce superior quality Sake. It's then washed, soaked, and steamed, optimizing it for effective fermentation with Koji and yeasts.
3Koji Magic
The rice is inoculated with Koji mold (Aspergillus oryzae), which turns the rice's starch into sugars for fermentation. The Koji rice then incubates in a temperature, contaminant, and humidity-controlled room for 36-48 hours.
4Yeasty Beasties
Next, Sake yeasts are added to the Koji rice. This mixture, called shubo or moto, ferments for 1-2 weeks, as the Koji enzymes continue to break down starches into sugar, and the yeasts turn the sugar into booze and bubbles.
5Moromi Mashup
More Koji, rice, and water are progressively added to the shubo, until it swells into the main mash, moromi, which ferments for a month in giant, tightly-sealed tubs under the Toji’s watchful eye.
6Main Squeeze
Once the moromi has fully fermented, the rice wine is carefully extracted from the fermented rice solids through pressing. This liquid, now transformed into Sake, is then filtered and pasteurized.
7Graceful Aging
The aging of Sake, which spans months to years, is meticulously monitored to achieve the Toji's desired balance of sweetness, umami, and acidity, ensuring a rich, refined profile.
8Bottling Bash
After maturing, the Sake is gently bottled, preserving its rich flavors, ready to be enjoyed by sake connoisseurs. Now, the long journey of the Sake is ready to be shared and celebrated. Kanpai!
Introducing the MVP of Sake Fermentation
Meet Koji, Japan's National Mold and the secret star behind Sake's unique charm! This special mold, scientifically known as Aspergillus oryzae, doesn’t just make Sake, well, Sake, but also plays a pivotal role in crafting "fermented rice water" and setting Sake distinctly apart from other wines.
A microscopic shot of Koji mold (Aspergillus oryzae).
Mold...in skincare? 🤔 Absolutely! Much like the Penicillin in blue cheese, Koji is a beneficial mold with a rich history in Japan. Originally a wild fungus, it underwent 1300 years of cultivation by Japanese fermentation specialists, evolving into the fermentation powerhouse it is today. There was even a historical conflict known as the Koji Battle of Bunn-an. Imagine a throwdown over...mold. But that's how vital Koji was and still is to the Japanese, even earning the title of National Mold of Japan!*
Beyond its critical role in Sake brewing, Koji is the powerhouse behind numerous fermented staples in Japanese cuisine, contributing to Japan's remarkable life expectancy, which once held the global record.
A closeup view of Japanese rice grains that have been carefully fermented with Koji mold.
In the Sake brewing process, Koji works its magic. It breaks down rice starch into sugar, essential for alcohol fermentation, while also crafting a plethora of skincare superstars like enzymes, ceramides, kojic acid, peptides, and more. It transforms rice nutrients into smaller molecules, allowing them to penetrate deeper into the skin, increasing the nutrients bioavailability.
But Koji doesn’t work alone! After its starch-converting efforts, Sake yeasts like Saccharomyces cerevisiae and Galactomyces take the stage, turning sugar into alcohol and enhancing Sake’s flavor, all while conjuring additional skin-loving compounds like Galactomyces Ferment Filtrate, Saccharomyces Ferment Filtrate, and more antioxidants.
“Japanese foods fermented with Koji are even said to be the reason Japan has long had the highest average lifespans in the world.”
Given the abundance of beneficial qualities, it's not surprising that the Japanese have been incorporating Sake into their skincare regimen for centuries. This traditional practice includes indulging in Sake-infused onsen (hot spring) baths or utilizing Sake as a natural skin moisturizer and toner.
A Sake Secret
Okay, up until now, I've been harboring a major secret, and it's finally time to spill the sake. There’s a very special ingredient, born from the sake brewing process itself. It's been a cult secret cherished by Japanese beauty aficionados for centuries, yet remains largely undiscovered outside Japan. And while Western media has raved about the fermented rice water trend, this hidden gem has remarkably stayed under the radar. Our discovery of this well-kept Japanese beauty secret comes after our meticulous efforts to track down the real origins of the celebrated rice water movement. This byproduct isn't just more potent when it comes to skincare benefits— it's also 100% upcycled from sake's zero-waste production, a true gift of sustainable beauty from sake breweries. Are you ready to find out? Read on.
1 Kitagaki H. Medical Application of Substances Derived from Non-Pathogenic Fungi Aspergillus oryzae and A. luchuensis-Containing Koji. J Fungi (Basel). 2021 Mar 24;7(4):243. doi: 10.3390/jof7040243. PMID: 33804991; PMCID: PMC8063943.
2 Gaspar, L.R. et al. (November 2008) Evaluation of dermatological effects of cosmetic formulations containing Saccharomyces cerevisiae extract and vitamins. Food and Chemical Toxicology
Part 5:
Sake Kasu:
The Hidden Gem
Ready for the big reveal? Hold on to your sake cups, because we're about to shake up the beauty world! Let me be the first to introduce you to wonder of Sake Kasu. This splendid ingredient, also known as Sake lees or Sake cake and written as 酒粕 in Japanese, is a nutrient-rich byproduct formed from the meticulous sake-making process. It takes form as the compacted, solid fermented rice mash left behind after the liquid Sake has been extracted through pressing, much like the pulpy grape remnants in red wine extraction, known as wine lees.
A brewery worker carefully collects pressed sheets of Sake Kasu, which is ready to see its second life as culinary and skincare delight.
In Japan, Sake Kasu is upcycled and celebrated both as a healthy culinary ingredient and as a potent element in skincare products because, really, why waste something so fabulous? Its flavor profile offers a unique blend of mildly sweet, umami, nutty, and fruity notes. If you’re into cooking with beer or whiskey, you might want to give Sake lees a go. Not only does it bring an extra dimension to your dish, but it also boasts Koji ferment health benefits, which many believe to be a major contributor to Japan's famously high longevity.
"Sake Kasu is a favorite among our customers for both cooking and skincare since it has a higher density of the all the nutrients you find in Sake."
Akira Koizumi,
Toji at Koizumi Shuzō 小泉酒造
Sake Kasu is not only bursting with potent health benefits but also serves as a concentrated source of all the lush skin nutrients that put Sake (aka fermented rice water) in the beauty community spotlight. We’re talking about those vital amino acids, enzymes, vitamins, and peptides, which we’ll dive deeper into a bit later. Essentially, it’s all the goodness of Sake, but supercharged and packed into this humble byproduct.
Just think: a natural skincare ingredient that fine-tunes your skin texture, diminishes fine lines, and bestows hydration, all at your fingertips. In Japan, this powerhouse ingredient is incorporated into masks, lotions, and creams to enhance skin health and radiance.
But the true beauty of Sake Kasu? It's not just a culinary and skincare marvel but a beacon of sustainability. Every part of the rice grain is used; nothing wasted—from the Sake we enjoy, to the komenuka rice bran polish, to nourishing Kasu. Using Sake Kasu isn’t just adopting a beauty secret; it's honoring a tradition that mindfully sustains our skin, taste buds, and planet.
So, there you have it! The sake's out of the bottle, the secret is unveiled. Let Sake Kasu redefine your skincare ritual. Dive in, and explore all the proven benefits of this wonder ingredient below.
Unlock Radiance from Your Kitchen! Achieve a Glowing Complexion in Just 14 Days.
Easy ways to see if your skin is getting all the nutrients it actually needs? Get the Ultimate Guide to Using Rice for Better Skincare
- Learn how to create your own rice water serum.
- Step-by-step guide on creating your own fermented rice body and face mask.
- Get your soak on, and learn how to whip-up a Sake-tastic bath bomb.
- Plus 27 pages chock full of minimalist skincare tips!
Part 6:
What Are the Proven Benefits of Fermented Rice Water?
OK, are you ready for some serious knowledge bombs? It’s time to dive into the deep end of the fermented rice pool – yes, we're talking about the skincare wonders of Sake Lees, aka the nutrient-packed form of Sake, or fermented rice water if you prefer. After sifting through a mountain of studies (and maybe a few sake bottles), we've compiled the ultimate lowdown. Sure, it’s jam-packed with sciencey stuff, but don’t sweat – we’ve kept it light and breezy. Seriously, this might just be the most epic guide to fermented rice water out there. So, strap in!
We'll be answering some burning questions like: Are the benefits of fermented rice water scientifically proven? What are all the benefits of fermented rice water for your skin? Can fermented rice water be used on the face? Does fermented rice water grow hair? For those who love a good TL;DR – the answers to all the questions are a resounding YES! But if you’re the type who loves the full scoop, stick around for the juicy details.
Exfoliate and Boost Cell Turnover
Control Sebum and Unclog Pores
Repair and Strengthen Skin Barrier
Repair UV Damage
Sooth Inflammation & Irritation
Boost and Retain Skin Hydration
Brighten and Reduce Hyperpigmentation
Boost Collagen and Elasticity
Smooth, Soften & Tone
Reduce Appearance of Lines & Wrinkles
Exfoliate & Boost Cell Turnover
Boost & Lock in Hydration
Control Sebum & Unclog Pores
Brighten & Fade Spots
Repair & Boost Skin Barrier
Boost Collagen & Elasticity
Repair UV Damages
Smooth, Soften & Tone
Sooth Irritation & Inflammation
Reduce Appearance of Lines & Wrinkles
Exfoliate & Boost Cell Turnover
Control Sebum & Unclog Pores
Repair & Boost Skin Barrier
Repair UV Damages
Sooth Irritation & Inflammation
Boost & Lock in Hydration
Brighten & Fade Spots
Boost Collagen & Elasticity
Smooth, Soften & Tone
Reduce Appearance of Lines & Wrinkles
Boosts and Retains Skin Hydration
The Skinopsis
Want that radiant, smooth complexion? It's all about the balance of lipids and water. But age can be a party pooper, stealing that balance and leaving us looking a tad... lackluster. Enter humectants, the skin's tiny moisture magnets. Sake's packed with them, which is why Japan's been bathing in it for ages. A Sake Bath is said to be the secret sauce for soft, glowing skin and a circulation boost. Cheers to that!
What compounds in Sake Kasu aid in skin moisture retention?
Galactomyces, Glutamic acid, Oligosaccharides, Pantothenic acid, Saccharomyces, β-glucan, Oligosaccharides, Biotin, glucosylceramide (also found in konjac), and ethyl α-d-glucoside (a-EG).
The Research
In a 2021 study published in the Journal of Fungi, researchers identified that glycosylceramide, present in koji, possesses the potential to ameliorate Transepidermal Water Loss (TEWL).1
A 1997 study in Skin Pharmacology and Physiology highlighted the benefits of ethyl α-d-glucoside (a-EG) found in sake. This compound is recognized for its ability to mitigate transepidermal water loss and enhance skin moisturization. Notably, the study revealed that sake "lowered the transepidermal water loss levels compared to the controls on the 3rd day after UVB radiation."2
Furthermore, a 2018 research article in Foods demonstrated that Sake Lees contributed to enhanced moisture content in the cheek stratum corneum, improved skin viscoelasticity, and refined skin texture.3
Key Skinsight
Sake and its components, such as glycosylceramide and ethyl α-d-glucoside, can help keep skin hydrated by reducing water loss and improving moisture levels. These unique ingredients found in sake also contribute to better skin elasticity and texture.
1 Kitagaki H. Medical Application of Substances Derived from Non-Pathogenic Fungi Aspergillus oryzae and A. luchuensis-Containing Koji. J Fungi (Basel). 2021 Mar 24;7(4):243. doi: 10.3390/jof7040243. PMID: 33804991; PMCID: PMC8063943.
2 Kitamura N, Ota Y, Haratake A, Ikemoto T, Tanno O, Horikoshi T. Effects of ethyl alpha-D-glucoside on skin barrier disruption. Skin Pharmacol. 1997;10(3):153-9. doi: 10.1159/000211480. PMID: 9287396.
3 Maeda K, Ogino Y, Nakamura A, Nakata K, Kitagawa M, Ito S. Identification of Rice Koji Extract Components that Increase β-Glucocerebrosidase Levels in Human Epidermal Keratinocytes. Foods. 2018 Jun 18;7(6):94. doi: 10.3390/foods7060094. PMID: 29912147; PMCID: PMC6025003.
Repairs and Strengthens Skin Barrier
The Skinopsis
Your skin's barrier is essential, acting as a shield against irritants, maintaining a balanced pH for healthy cell growth, and slowing down signs of aging. However, when this barrier weakens due to decreased lipids, it can lead to dryness and sensitivity. Fortunately, compounds in sake step in to help repair and strengthen, giving your skin the boost it needs.
What compounds in Sake Kasu aid in repairing and strengthening skin barrier function?
β-glucan, Lysophosphatidic acid, Oligosaccharides, ethyl alpha-D-glucoside (alpha-EG), glycosylceramide, ethyl R-D-glucoside, Niacin, Pantothenic Acid, Sphingolipids, and Galactomyces.
The Research
In a 2005 article in the Journal of Agricultural and Food Chemistry, Sake's ethyl R-D-glucoside was shown to reduce UV skin damage. Notably, similar benefits weren't observed with red wine and beer concentrates.1
A 2007 study in Bioscience, Biotechnology, and Biochemistry revealed that Sake's ethyl alpha-D-glucoside (alpha-EG) enhances intercellular lipid content in aged skin, aiding barrier repair.2
A 2019 research in Fermentation highlighted glycosylceramide in koji, which increases ceramide in keratinocytes, strengthening the skin barrier.3
Lastly, a 1997 paper in Skin Pharmacology and Physiology found that Sake's alpha-ethylglucoside (a-EG) boosts keratinocyte differentiation, offering protection against UVB-induced barrier disruption.4
Key Skinsight
Sake and its compounds, like ethyl α-d-glucoside and glycolceramide from Koji, can help improve skin health by repairing and strengthening the skin's natural barrier. These unique compounds in Sake also protect the skin from UV damage, setting Sake apart from other fermented beverages like wine and beer.
1 Masato Hirotsune, Akinori Haratake, Aya Komiya, Jun Sugita, Toru Tachihara, Tsuyoshi Komai, Kazuhisa Hizume, Kenji Ozeki, and Takeshi Ikemoto (January 2005) Effect of ingested concentrate and components of sake on epidermal permeability barrier disruption by uvb irradiation. Journal of Agricultural and Food Chemistry 2005, 53, 4, 948–952.
2 Nakahara M, Mishima T, Hayakawa T. Effect of a sake concentrate on the epidermis of aged mice and confirmation of ethyl alpha-D-glucoside as its active component. Biosci Biotechnol Biochem. 2007 Feb;71(2):427-34. doi: 10.1271/bbb.60489. Epub 2007 Feb 7. PMID: 17284832.
3 Miyagawa, & Fujikawa, & Nagadome, & Kohama, & Ogami, & Kitamura, & Kitagaki,. (2019). Glycosylceramides Purified from the Japanese Traditional Non-Pathogenic Fungus Aspergillus and Koji Increase the Expression of Genes Involved in Tight Junctions and Ceramide Delivery in Normal Human Epidermal Keratinocytes. Fermentation. 5. 43. 10.3390/fermentation5020043.
4 Kitamura N, Ota Y, Haratake A, Ikemoto T, Tanno O, Horikoshi T. Effects of ethyl alpha-D-glucoside on skin barrier disruption. Skin Pharmacol. 1997;10(3):153-9. doi: 10.1159/000211480. PMID: 9287396.
Boosts Collagen and Skin Elasticity
The Skinopsis
Ever wondered about the secret behind youthful, springy skin, or in J-beauty speak, Mochi Hada (skin)? Dive deep, and you'll discover fibroblast cells, responsible for producing our collagen and elastin fibers. As we age, these cells can lose their touch, leading to sagging and fine lines. Sake contains compounds that stimulate these fibroblasts, promoting a return to our skin's youthful state.
What compounds in Sake Kasu help promote skin elasticity and firmness?
alpha-D-gulcosylglycerol (a-GG), Proline, Glutamic acid, Pantothenic acid, Niacin, β-glucan, ethyl α-d-glucoside (α-EG)
The Research
A 2010 study in Bioscience Biotechnology and Biochemistry revealed that a mere 14 days of daily application of alpha-D-glucosylglycerol (a-GG) from sake enhanced cheek skin elasticity in women. The magic behind this? a-GG boosts the body's growth factor (IGF-I), vital for skin cell repair and regeneration, enhancing skin elasticity.1
Fast forward to 2017, the same journal published findings on another Sake gem: ethyl α-d-glucoside (α-EG). This compound supercharged human dermal fibroblasts by a whopping 121.0%. Remember, fibroblasts are the architects of our skin structure. The study didn't stop there: α-EG also ramped up collagen production by an impressive 159.6%.2
Finally, a 2018 study in Foods spotlighted rice koji, or Aspergillus oryzae. This key ingredient, unique to Sake production, was found to enhance skin's viscoelasticity and texture.3
In Japan, Mochi Hada is a skincare goal inspired by the plush texture of mochi rice cakes. It goes a step beyond 'glass skin', pursuing skin that's not just smooth and clear, but also soft, supple, and bouncy.
Key Skinsight
Overall, the research suggests that a-GG, which is found in Japanese traditional brewed foods like Sake, can be a natural and effective way to improve skin elasticity and promote healthy, youthful-looking skin.
1 Harada N, Zhao J, Kurihara H, Nakagata N, Okajima K. Effects of topical application of alpha-D-glucosylglycerol on dermal levels of insulin-like growth factor-i in mice and on facial skin elasticity in humans. Biosci Biotechnol Biochem. 2010;74(4):759-65. doi: 10.1271/bbb.90797. Epub 2010 Apr 7. PMID: 20378988.
2 Takayuki Bogaki, Keiichi Mitani, Yuki Oura & Kenji Ozeki (2017) Effects of ethyl-α-d-glucoside on human dermal fibroblasts, Bioscience, Biotechnology, and Biochemistry, 81:9, 1706-1711, DOI: 10.1080/09168451.2017.1353400.
3 Maeda K, Ogino Y, Nakamura A, Nakata K, Kitagawa M, Ito S. Identification of Rice Koji Extract Components that Increase β-Glucocerebrosidase Levels in Human Epidermal Keratinocytes. Foods. 2018 Jun 18;7(6):94. doi: 10.3390/foods7060094. PMID: 29912147; PMCID: PMC6025003.
Brightens and Lightens Hyperpigmentation
The Skinopsis
Melanin: a classic case of 'too much of a good thing'. It blesses us with rich tones in our skin, hair, and eyes and acts as our built-in UV guard, all orchestrated by the enzyme tyrosinase. But sometimes tyrosinase doesn't know when to stop. Triggers like UV rays or hormones push it into overdrive, causing hyperpigmentation, like age spots. Enter Sake: its compounds keep tyrosinase in check, inhibit excess melanin, and speed up skin cell turnover, ensuring our complexion stays spotless and radiant.
What compounds in Sake Lees help brighten skin and eliminate hyperpgimentation?
Kojic acid, Arbutin, Ferulic Acid, Glutathione, Folic Acid (Vitamin B9), Leucine, Saccharomyces Ferment Filtrate, Glycosphingolipids
The Research
In a 2006 article in the Journal of Agricultural and Food Chemistry, researchers identified triacylglycerols in sake lees as inhibitors of tyrosinase activity, suggesting their potential in hyperpigmentation prevention.1 This was later corroborated in a 2014 study in Microbial Production.2
A separate investigation by AmorePacific's Skin Research Institute highlighted Kojic acid's effects on Tyrosinase and melanin. Results showed that Sake extract not only inhibited melanin production but also significantly enhanced skin brightness within just 7 days. The study concluded that sake extract is a potent anti-melanogenic agent beneficial for skin hyperpigmentation.3
A 2021 study, Inhibition of Tyrosinase Activity by Sake Lee Extract, spotlighted several compounds in Sake Lees, including arbutin, leucine, ferulic acid, and glutathione, that effectively counteract tyrosinase activity.4
Key Skinsight
Researchers discovered compounds in Sake Kasu that that inhibit tyrosinase, which is an enzyme responsible for hyperpigmentation. Researchers also found that sake lees significantly improves skin brightness in just 7 days. Their findings suggest that sake lees hold potential as an effective and safe ingredient to combat skin hyperpigmentation and is a promising solution for improving overall skin tone.
1 Jeon HJ, Noda M, Maruyama M, Matoba Y, Kumagai T, Sugiyama M. Identification and kinetic study of tyrosinase inhibitors found in sake lees. J Agric Food Chem. 2006 Dec 27;54(26):9827-33. doi: 10.1021/jf062315p. PMID: 17177508.
2 Matoba, Yasuyuki & Sugiyama, Masanori. (2014). Structure of Tyrosinase and Its Inhibitor from Sake Lees. Microbial Production. 10.1007/978-4-431-54607-8_21.
3 Hwang JA, Goh MJ, Kim EJ, Lee MR, Park NH, Na YJ, Cho JC, Lee HK. Identification of sake extract as a new anti-melanogenic ingredient by in vitro and clinical trials. Skin Research Institute, AMOREPACIFIC R&D Center. Nat Prod Commun. 2013 Nov;8(11):1605-8. PMID: 24427952.
4 Takaoka M, Kuba M, Saitou M, Sugimoto W, Motono Y. Inhibition of Tyrosinase Activity by Sake Lee Extract. 日本香粧品学会誌 Vol. 45, No. 2, pp. 93–96 （2021）
Reduce Appearance of Fine Lines and Wrinkles
The Skinopsis
Fine lines and wrinkles: nature's cheeky nod to our growing wisdom. Blame UV rays, sugar, and stress, the culprits behind free radicals that weaken our skin's structure. But we've got some say in this aging game. Shielding ourselves from the sun, choosing a healthier lifestyle, and—here's the fun part—embracing the magic of Sake can help. Sake's not just for sipping. Scientists say it's packed with compounds that boost collagen and fend off those pesky radicals. So, as we age, let's do it with the elegance of fine rice wine. Cheers to that!
What compounds in Sake Kasu help to reduce the appearance of fine lines and wrinkles and promote graceful aging?
Gamma-aminobutyric acid (GABA), Proline, α-EG, α-GG, Ferulic Acid, Galactomyces Ferment Filtrate, Succinic acid, Thiamin, Cysteine, Arginine, Vitamin B12, Niacin (Vitamin B3)
The Research
Gamma-aminobutyric acid (GABA), abundant in Sake and Sake Kasu, is an amino acid celebrated for its ability to amplify Hyaluronic acid and collagen in the skin. Often compared to the anti-aging effects of Botox, GABA provides a non-invasive alternative. Just one week of regular application showed reduced appearance of fine lines and wrinkles and improved skin elasticity. Its efficacy as a natural wrinkle relaxer has not only made it popularity in skincare but also demonstrates the inherent benefits of Sake.1
A 2009 study in the Journal of Bioscience and Bioengineering highlighted Sake's capacity to elevate procollagen and laminin-5 levels. It also suppresses the expression of MMPs and cytokine TNF-α, which are both triggered by UV exposure and are notorious for collagen breakdown. Scientists noted that this balanced mechanism highlights Sake's potential as an effective anti-aging agent.2
Key Skinsight
Sake is rich with GABA, which is known as a natural wrinkle relaxer with effects similar to Botox. It can reduce enzymes that cause collagen breakdown. Sake's ability to stimulate collagen production without causing irritation makes it an effective anti-aging ingredient.
1 Sahab NRM, Subroto E, Balia RL, Utama GL. γ-Aminobutyric acid found in fermented foods and beverages: current trends. Heliyon. 2020 Nov 16;6(11):e05526. doi: 10.1016/j.heliyon.2020.e05526. PMID: 33251370; PMCID: PMC7680766.
2 Seo MY, Chung SY, Choi WK, Seo YK, Jung SH, Park JM, Seo MJ, Park JK, Kim JW, Park CS. Anti-aging effect of rice wine in cultured human fibroblasts and keratinocytes. J Biosci Bioeng. 2009 Mar;107(3):266-71. doi: 10.1016/j.jbiosc.2008.11.016. PMID: 19269590.
Exfoliates and Promotes Cell Renewal
The Skinopsis
Love a good glow-up? Whether you're team physical or chemical exfoliation, we're all after that silky-smooth, radiant skin. Physical exfoliation uses scrubs to buff away dead cells, but beware—it can be a tad rough on the skin. On the flip side, chemical exfoliation, with its trusty acids like AHAs, dives deep into pores for a gentler, even-toned result. And guess what? Sake Lees is packed with these AHAs—Malic, Glycolic, Lactic—plus the enzyme protease. Not only do they offer gentle exfoliation, but these sake compounds also boost skin cell renewal. Ready for that next-level glow?
What compounds in Sake Kasu help promote exfoliation and skin cell turnover and renewal?
Enymze (Protease), Malic acid, Glycolic acid, Lactic acid, Citric acid, Niacin, Biotin, Pantothenic acid, Thiamin
The Research
In a 2022 study published in Cosmetics, researchers identified proteases in Sake as beneficial for skin appearance due to its exfoliating properties and enhanced moisture absorption. Notably, proteases are suggested as a safer alternative to bromelain (from pineapples) and papain (from papaya) due to fewer allergic reactions.1
A 2021 study in the Journal of the American Academy of Dermatology highlighted the effectiveness of cleansers and creams with low-concentration AHAs, like those in Sake. The research indicated significant increases in cell turnover, leading to noticeable exfoliation benefits for users. Participants reported mild exfoliation (94%), a renewed skin feel (10
0%), revitalized dry skin (97%), and smoother skin texture.2
Key Skinsight
Studies have shown that proteases found in Sake and Sake Kasu can enhance skin appearance by safely exfoliating and increasing moisture absorption. Additionally, low concentrations of Alpha Hydroxyacids (AHAs) in Sake and Sake Kasu can lead to noticeable improvements in skin cell turnover, resulting in benefits like light exfoliation, renewed skin, revitalized dull skin, and a smoother texture.
1 Ioannou, E.; Labrou, N.E. Development of Enzyme-Based Cosmeceuticals: Studies on the Proteolytic Activity of Arthrospira platensis and Its Efficient Incorporation in a Hydrogel Formulation. Cosmetics 2022, 9, 106.
2 Brenda L. Edison, BAHeather A. Smith, BSBarbara A. Green, RPh, MSNeena K. Tierney, PhD. Skin exfoliation with low concentrations of alpha hydroxy acids and poly hydroxy acids when incorporated into wash-off or leave-on products using a novel abbreviated model to measure cell turnover rate. Journal of the American Academy of Dermatology, Volume 85, Issue 3, Supplement , Ab165, September
Controls Sebum and Clears Pores
The Skinopsis
Pores may be tiny, but they play a crucial role in our skin's health. They release sebum, our skin's natural oil, to keep it moisturized. However, when there's an overproduction of this oil combined with external factors like dirt, bacteria, pollution, and UV damage, pores can become enlarged, often leading to acne. Add aging to the mix, and our skin's diminishing elasticity can make these pores even more noticeable. But there's hope with Sake. Sake hydrates, making skin plumper and thereby narrowing the pore's opening. It also regulates sebum production and exfoliates away dead skin cells to prevent clogs that enlarge pores.
What compounds in Sake Kasu help reduce pore visibility?
Galactomyces, α-EG, α-GG, Thiamin (Vitamin B1), Malic acid, Inositol, Oligosaccharide, Pyridoxine (Vitamin B6), Enzyme (Lipase)
The Research
In a 2021 study from the Journal of Clinical Medicine, over 250,000 women aged 20–35 applied the Sake compound, Galactomyces, for 4 weeks. Using a skin imaging device, the focus was on its effect on enlarged follicular pores. Results showed pores were most prominent in the mornings, possibly due to nighttime skin dehydration and sebum accumulation.
Sake's Galactomyces was found to reduce pore size, thanks to its strong moisturizing abilities. Additionally, it significantly curtailed UVB-stimulated sebum production, further aiding in pore refinement.1
A separate 2020 study in Bioscience, Biotechnology, and Biochemistry revealed that consuming Sake cake (Sake Kasu) decreased sebum in female participants. Additionally, Sake Kasu intake was associated with benefits such as enhanced hair glossiness, improved facial tone, and a rejuvenated feeling upon waking2
Key Skinsight
Sake compounds can help reduce pore size by increasing skin hydration, controlling sebum production, increasing skin elasticity, softening the skin and exfoliating dead skin cells and oil. Galactomyces, in particular, is observed to have a significant moisturizing capacity and to decrease sebum production stimulated by UVB irradiation.
1 Miyamoto, K.; Dissanayake, B.; Omotezako, T.; Takemura, M.; Tsuji, G.; Furue, M. Daily Fluctuation of Facial Pore Area, Roughness and Redness among Young Japanese Women; Beneficial Effects of Galactomyces Ferment Filtrate Containing Antioxidative Skin Care Formula. J. Clin. Med. 2021, 10, 2502.
2 Hiroko Maruki-Uchida, Masahiko Sai, Shoichiro Yano, Minoru Morita, Kazuhisa Maeda, Amazake made from sake cake and rice koji suppresses sebum content in differentiated hamster sebocytes and improves skin properties in humans, Bioscience, Biotechnology, and Biochemistry, Volume 84, Issue 8, 2 August 2020, Pages 1689–1695
Smooths and Softens Skin Texture
The Skinopsis
Ever had one of those days where you swear your skin feels more like the Sahara than, well, skin? We've all been there. Those days when our skin rebels, turning from our soft, dewy peach into a prickly, scaly desert lizard. Why, skin, why? The truth is, our skin's texture can be as unpredictable as a plot twist in Netlix's latest thriller. Whether it's the harsh winter winds, forgetting to drink that extra glass of water, or simply the march of time slowing down our skin's natural renewal process, roughness can sneak up on us. Sake compounds not only hydrate and exfoliate the skin, but also go the extra mile to smooth and soften your skin texture.
What compounds in Sake Lees help balance your complexion and smooth your skin texture?
a-EG, Galactomyces, Protease, Glutamic acid, Niacin, Oligosaccharides, Ferulic acid, Kojic acid, Saccharomyces Ferment Filtrate, Proline, Glycine, Pantothenic Acid (Vitamin B5), Polysaccharides
The Research
In a 1997 study in Skin Pharmacology and Physiology, researchers highlighted the benefits of ethyl α-d-glucoside (a-EG) in sake. This compound alleviated rough skin from UV-B exposure and, due to its moisturizing properties, promoted smoother skin texture.1
Later, a 2018 study in Foods reinforced these findings, showing that Sake Kasu significantly improved skin texture.2
A 2021 study in the Journal of Clinical Medicine examined the effects of the Sake compound Galactomyces on over 250,000 women aged 20-35. Results indicated a notable reduction in skin roughness after using a Galactomyces-infused face wash. Additionally, skin roughness at week 4 was markedly better than at week 1 of the trial.3
Key Skinsight
A combination of studies has shown that Sake compounds, including ethyl α-d-glucoside (a-EG) and Galactomyces, provide significant benefits for skin texture and roughness. These compounds offer both immediate improvements upon application and long-term benefits with consistent use, leading to smoother and more supple skin.
1 Kitamura N, Ota Y, Haratake A, Ikemoto T, Tanno O, Horikoshi T. Effects of ethyl alpha-D-glucoside on skin barrier disruption. Skin Pharmacol. 1997;10(3):153-9. doi: 10.1159/000211480. PMID: 9287396.
2 Maeda K, Ogino Y, Nakamura A, Nakata K, Kitagawa M, Ito S. Identification of Rice Koji Extract Components that Increase β-Glucocerebrosidase Levels in Human Epidermal Keratinocytes. Foods. 2018 Jun 18;7(6):94. doi: 10.3390/foods7060094. PMID: 29912147; PMCID: PMC6025003.
3 Miyamoto, K.; Dissanayake, B.; Omotezako, T.; Takemura, M.; Tsuji, G.; Furue, M. Daily Fluctuation of Facial Pore Area, Roughness and Redness among Young Japanese Women; Beneficial Effects of Galactomyces Ferment Filtrate Containing Antioxidative Skin Care Formula. J. Clin. Med. 2021, 10, 2502. doi: 10.3390/jcm10112502
Prevents and Repairs UV Damage
The Skinopsis
Have you seen that starting photo of a trucker's sun damage? One half of his face looks like a 90-year-old prune (thanks to the sun through the driver's window) while the other reflects his actual age in the 50s-60s range. It almost seems like a crafty ad from the Sunscreen Mafia. But seriously, sun damage is no joke and is said to account for up to 80% of visible signs of aging. So, how can we shield ourselves from UV rays without resorting to a vampire lifestyle? After all, we need our vitamin D. It's Sake to the rescue—again! Brimming with powerful compounds and antioxidants, Sake not only mends sun damage but provides a bit of protection as well.
What compounds in Sake Kasu help prevent and repair your skin from UV damage?
Ferulic acid, α-EG, a-GG, Saccharomyces, Glutamic Acid, Niacin, Thiamin, Pantothenic Acid, p-Coumaric Acid, Glycine
The Research
In a 2005 study in the Journal of Agriculture and Food Chemistry, it was found that daily application of Sake concentrate shields the skin from UVB radiation and reduces outer skin damage from UVB.^1
Research from the Doosan R&D Center and Dongguk University highlighted Sake's role in preventing and treating sun-induced skin aging. The findings showed that Sake reduces skin wrinkling and epidermal thickening, which leads to rough or leathery skin.^2
Sake naturally contains Ferulic acid, a potent skincare compound. This antioxidant reduces UV-induced damage, neutralizes free radicals, and lessens oxidative stress, helping to protect cells from UV damage, prevent premature aging and skin cancer risk. Due to its anti-aging properties, Ferulic acid is increasingly used in skincare products. In Sake, it's naturally present thanks to the Koji fungus.3,4
Key Skinsight
Researchers have found that daily application of Sake concentrate can shield skin from UVB radiation and reduce damage to its outer layer. Antioxidants and compounds like Ferulic acid in Sake combat free radicals and guard skin cells from UV damage. But remember, while Sake is magical, it's no sunblock replacement. So, keep that SPF handy and reapply it like your favorite 2000s fruity lip balm!
1 Hirotsune M, Haratake A, Komiya A, Sugita J, Tachihara T, Komai T, Hizume K, Ozeki K, Ikemoto T. Effect of ingested concentrate and components of sake on epidermal permeability barrier disruption by UVB irradiation. J Agric Food Chem. 2005 Feb 23;53(4):948-52. doi: 10.1021/jf048893s. PMID: 15713003.
2 Seo MY, Chung SY, Choi WK, Seo YK, Jung SH, Park JM, Seo MJ, Park JK, Kim JW, Park CS. Anti-aging effect of rice wine in cultured human fibroblasts and keratinocytes. J Biosci Bioeng. 2009 Mar;107(3):266-71. doi: 10.1016/j.jbiosc.2008.11.016. PMID: 19269590.
3 Uno, T., Itoh, A., Miyamoto, T., Kubo, M., Kanamaru, K., Yamagata, H., Yasufuku, Y., & Imaishi, H. (2009). Ferulic Acid Production in the Brewing of Rice Wine (Sake). Journal of The Institute of Brewing, 115, 116-121.
4 Uno, T., Itoh, A., Miyamoto, T., Kubo, M., Kanamaru, K., Yamagata, H., Yasufuku, Y., & Imaishi, H. (2009). Ferulic Acid Production in the Brewing of Rice Wine (Sake). Journal of The Institute of Brewing, 115, 116-121.
Helps with Skin Inflammations
The Skinopsis
Skin flare-ups: Because your skin thought you needed extra drama! Whether it's inflammations, surprise allergies, or autoimmune diseases, they bring a host of problems like redness, swelling, heat, flaking, and sometimes pain or itching. Contact dermatitis is when your skin throws a mini tantrum after meeting certain ingredients. Preventing it is relatively easy when you know your skin and can steer clear of harsh and irritating ingredients. But what about its annoying cousin, atopic dermatitis? Sake might be your new BFF, as it contains compounds that can help reduce skin inflammations.
What compounds in Sake Kasu help promote skin elasticity and firmness?
Linoleoyl ethanolamide (LE), Lactobacillus, Inositol, Niacin, Glycine, Pyridoxine (Vitamin B6), Zinc, Magnesium, Serine, Arginine
The Research
In a 2013 study published in the European Journal of Pharmacology, researchers identified a compound in sake lees, linoleoyl ethanolamide (LE), with potential anti-inflammatory properties. When applied to the inflamed skin (contact dermatitis) of mice, LE not only reduced inflammation but also outperformed licorice root in reducing TNF-alpha, a notable anti-inflammatory compound utilized in skincare treatments. LE achieved this by diminishing the production of several pro-inflammatory substances, inhibiting a specific inflammation-inducing pathway, and preventing a protein from promoting inflammation within the cell nucleus.1 Consequently, the researchers proposed LE as a potent treatment for skin inflammations, such as contact dermatitis.
A 2012 study in Food Science and Technology Research explored the anti-inflammatory capabilities of several Lactobacillus strains, specifically focusing on their ability to suppress serum immunoglobulin E (IgE) – a substance linked to allergies and skin inflammations like atopic dermatitis. Remarkably, a strain extracted from Sake Lees, L. paracasei K71, was most effective in reducing IgE levels, likely due to its stimulation of IL-12 production, which in turn diminishes IL-4, a substance crucial for IgE synthesis. Thus, the researchers concluded that Sake Lees may offer valuable properties for ameliorating allergies and skin inflammations associated with IgE.2
Key Skinsight
Studies have proven that the compounds naturally found in Sake Kasu can fight inflammation even better than licorice root, which is a popular anti-inflammatory ingredient in skincare products. This suggests that Sake lees could be a fantastic remedy for allergies and skin inflammations like atopic dermatitis.
1 Ishida T, Nishiumi S, Tanahashi T, Yamasaki A, Yamazaki A, Akashi T, Miki I, Kondo Y, Inoue J, Kawauchi S, Azuma T, Yoshida M, Mizuno S. Linoleoyl ethanolamide reduces lipopolysaccharide-induced inflammation in macrophages and ameliorates 2,4-dinitrofluorobenzene-induced contact dermatitis in mice. Eur J Pharmacol. 2013 Jan 15;699(1-3):6-13. doi: 10.1016/j.ejphar.2012.11.030. Epub 2012 Nov 28. PMID: 23201070.
2 Kumagai, Takehisa & Iguchi, Mariko & Shigeyama, Naoya & Okada, Sanae & Joh, Toshio & Hara, Takashi. (2013). Lactobacillus paracasei K71 Isolated from sakekasu (Sake Lees) Suppresses Serum IgE Levels in Ovalbumin-immunized Balb/c Mice. Food Science and Technology Research. 19. 127-132. 10.3136/fstr.19.127.
INÉ Skin Nutrient Bar: Your Key to Unlocking the Ageless Beauty of Fermented Rice Water!
Introducing the INÉ Skin Nutrient Bar
An Artisan Soap Bar Made with Japanese Sake
Immerse yourself in the transformative power of fermented rice with the Skin Nutrient Bar, meticulously crafted with 100% organic Sake Kasu, a legendary secret from ancient Japanese skincare rituals.
Each bar, lovingly crafted to preserve the full, potent benefits of Sake Kasu, is designed to cleanse, nourish, and rejuvenate your skin from head to toe—all in the meditative mist of your shower. Just as the Toji's hands glow from daily immersion in sake, your skin too can embrace the radiant benefits of sake.
- Free from Harmful Additives
- Vegan Friendly
- Non-Comedogenic
- Safe For All Skin Types
- No Artificial Coloring or Fragrance
Part 7:
Real Results from Sake Kasu Skincare
Excited to see the skin-transforming magic of this Japanese wonder ingredient in real life?
Well, you’re in luck! Japanese beauty bloggers have been documenting and sharing their skincare journeys with this sake-based secret. The only catch? Most of their tips and tricks are on Japanese blogs, so it's a bit tricky for those of us who don't speak the language. And while our K-beauty friends are always eager to share with the world, it seems like the Japanese like to keep some beauty secrets a little closer to home.
But fear not! We've done the legwork for you and translated these insightful blogs into English for easy reading. Dive in and discover the wonders of this skincare secret! Below is one such blog post from former esthetician and mommy blogger, Azu, sharing her personal journey with this intriguing ingredient.
Azu mixes Sake Kasu with some distilled water to make it into a paste before applying the mask to her face.
Before becoming a mom, Azu used to maintain her skin with the high-end facial equipment available at the salon where she worked. But with a new baby, she found herself with little time to care for her own skin. The lack of care led to dry skin, larger pores, and age spots becoming more obvious. Undereye circles started to creep in due to sleepless nights from looking after her baby.
Her skin was in bad shape, but she was hesitant to spend money on pricey serums or facial treatments. Instead, she wanted a simple and naturla skin care routine that she could do at home when her baby was asleep.
Always fond of natural skincare, she experimented with a Sake Kasu face mask. After applying her Sake Kasu mask, she was amazed by the skin transformation just 10 minutes later.
On her blog, she notes that the unfiltered close-ups might reveal the real deal about a mom in her thirties’ skin, but they also showcased the brightening magic of the Sake Kasu mask. Even her husband couldn’t help but comment on her newfound glow! One use had her skin not only looking brighter but feeling softer and bouncier. She was hooked.
She also found that regular use of the mask noticeably minimized her pores, effectively removed dirt, improved blackheads, and even lightened her hyperpigmentation.
She pointed out that the instant results from Sake Kasu blew many of the pricey, luxury skincare treatments she'd tried out of the water. And the best part? It didn't break the bank.
Azu's experience drives home a simple truth: You don't need an elaborate, time-consuming skincare routine. Her transformation makes it clear: with the right natural ingredient, like Sake Kasu, and a little consistency, amazing skin isn't out of reach — even for busy moms in search of simple yet potent skincare fixes.
Thanks to Azu at babymaybe-official.com for letting us share her Sake Kasu experience. A working mom and former esthetician in Omotesando, who now lives in Malaysia, Azu specializes in anger management, specifically in child-rearing. Through her blog, Azu taps into her background as a former esthetician to offer valuable beauty advice specifically for new moms.
Part 8:
DIY Tutorial: How to Make Fermented Rice Water—The Real Way
The internet is alive with chatter, and maybe you've caught wind of it: the allure of creating a homemade brew that mirrors the sake fermented rice water extract found in luxury skincare lines. Yet, if you've ever attempted this and ended up with a jar of oddly-scented liquid, understand you're not the only one. Some DIYers have even reported skin mishaps after using their homemade concoctions. However, you're now on the path to the real deal, as we debunk myths and provide a genuine, effective method.
Separating Grain from Chaff
First, let's recap on the differences between rice water and its fermented counterpart, both of which hail from traditional Japanese beauty rituals.
The basic rice water rinse, which echoes the timeless practices of Heian court women, is a straightforward preparation, offering a user-friendly solution for enhancing shine and vitality to hair and skin. Simplicity at its finest, right?
On the other hand, to truly tap into the rice's nutrient-rich potential, fermentation is key, but involves a slightly more complex approach. But done successfully, fermented rice water unlocks a trove of nutrients not available in the original form of the rice grain.
DIY Pitfalls
Ever stumbled upon a DIY blog tutorial suggesting you rinse some store-bought rice, place it in a jar, let it "ferment" on your countertop or fridge for a week, and voila! But let’s pause and reflect on the actual science unfolding in that jar of rice water. Would you leave grape juice out, expecting it to transform into wine? Or set a glass of milk on the counter, hoping for cheese? Unlikely, right?
Imagine all the uninvited microscopic guests – Staphylococcus, Streptococcus, Corynebacterium, and those unwanted mold spores. These potential pathogens not only can disrupt your skin but also pose significant health risks. Need more detail? There’s a YouTube video discussing the “fried rice syndrome,” revealing the unsettling aspects of food poisoning from left-out rice.
So, Can You Truly Create Your Own Fermented Rice Water?
If you’re bummed about all those misleading DIY tutorials, don’t worry!
We're about to spill the tea (or should we say sake?) on how genuine Sake fermented rice water is crafted. Soon, you’ll see why authentic fermented rice water stands apart from those faux-mented rice water tutorials circulating on the web.
And here’s the good news: with the right method and starter, you can get real fermented rice water in just four hours! So if you've ever made yogurt before, you're already one step ahead in the fermentation game.
Now we’ll guide you through making real fermented rice water in your kitchen using an Instant Pot and the right starter. While it won’t mirror brewery-quality Sake - which requires climate-controlled rooms, additional ingredients and yeasts, and a seasoned Toji - it will unquestionably boast many of the skincare benefits we've highlighted! Oh and we've learned from real fermentation experts in Japan to bring you this rare gem, so you’re in good hands.
Ready to dive in? Click below to access INÉ's exclusive DIY tutorial on the Sake-Derived Method for Brewing Genuine Fermented Rice Water.
Approved by Sake Brewers and Fermentation Experts in Japan.
INÉ Skin Nutrient Bar: Your Key to Unlocking the Ageless Beauty of Fermented Rice Water!
Introducing the INÉ Skin Nutrient Bar
An Artisan Soap Bar Made with Japanese Sake
Immerse yourself in the transformative power of fermented rice with the Skin Nutrient Bar, meticulously crafted with 100% organic Sake Kasu, a legendary secret from ancient Japanese skincare rituals.
Each bar, lovingly crafted to preserve the full, potent benefits of Sake Kasu, is designed to cleanse, nourish, and rejuvenate your skin from head to toe—all in the meditative mist of your shower. Just as the Toji's hands glow from daily immersion in sake, your skin too can embrace the radiant benefits of sake.
- Free from Harmful Additives
- Vegan Friendly
- Non-Comedogenic
- Safe For All Skin Types
- No Artificial Coloring or Fragrance
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How to Make Your Own Sake Face Mask
Uncover the remarkable benefits of Sake Kasu, packed with amino acids, vitamins, and antioxidants, and learn how to craft a luxurious face mask that rivals the effectiveness of high-end skincare brands like SKII, all at a fraction of the cost.