
It seems like every time you look, there’s some sort of new fad diet or superfood, all purported to be the best thing you can do for your health or to improve your natural beauty. But the good news is, this one’s actually fun to partake in.
Researchers at a university in Japan have now put sweet Japanese sake to the test, and have found it to have a number of positive beauty benefits, including improvement to under-eye health!
Japanese confectionery company Morinaga recently collaborated with Tokyo Engineering University to study the effects that amazake, or sweet sake, has on the drinker’s health.
Amazake, if you don’t know, is a traditional Japanese drink made from fermented rice, and is often sold at festivals, particularly around the new year period. Despite its name, “sweet sake” is actually a very low- (less than 1%) to non-alcoholic beverage, made using the lees leftover from sake production, and a type of mold – called kōji – used in fermenting miso paste and soy sauce. It may not sound very appetizing, but the amazake develops a natural sweetness as it incubates, and is really refreshing served chilled in the summer or hot in the winter.
▼Outdoor stall selling amazake (甘酒)

Results from the study have led researchers to believe that the sake lees and kōji mold in amazake are beneficial to personal health and beauty. The study involved 17 participants, all females between the ages of 40 and 60. One group drank a prescribed amount of amazake every morning and evening for one month. The other group was given a placebo- an amazake-like drink, but without the lees and mold found in the traditional stuff.
After the trial month was over both groups were compared. The amazake group were surprisingly reported to have improved, brighter under-eyes than the placebo group. Members of the amazake group were also found to have a slight increase in the temperature of the surface of their skin, which researchers theorize helps promote the excretion of waste from the body, hence giving the test subjects brighter, healthier-looking under-eyes with reduced shadows and eye-bags.
In addition, members of the amazake group also reported having “glossier hair”, and feeling more refreshed when waking up in the morning, while the placebo group did not.
Sound too good to be true? Of course it’s difficult to believe there is a miracle beauty secret out there, and considering the size and short time-span of the study, the results should possibly be taken with a grain of salt, but if you wanted to test it out yourself at home, it would definitely be a tasty experiment. Kanpai!
Source and references: Narinari/livedoor NEWS, Wikipedia
Featured image: Wikipedia (emily harbour in july)

New Sweet Sake Pocky showcases the flavour of a centuries-old Japanese sake brewery in Tokyo
Sake milkshakes return to Japan just in time to celebrate New Year’s
This no-bake sweet sake super-easy dessert is a perfect summertime sweets companion【Recipe】
We visit sake brewer Yamanashi Meijo and our mouths fall in love!
Can’t finish all your sake? Try bathing in it for healthy, younger-looking skin!
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
One Piece creator has hidden secret of anime treasure’s identity in chest at bottom of real-world ocean
Is Tokyo Station’s startlingly expensive wagyu bento boxed lunch worth its high price?[Taste test]
Sakura Festival in Chiyoda mixes illuminations, boats, music, and Rilakkuma in the heart of Tokyo
Kyoto raises hotel accommodation tax to fight overtourism, travelers could pay up to 10 times more
Shabani the gorilla is so handsome he’ll be appearing on sweets in Japan this Valentine’s Day
Should you warm up your convenience store onigiri rice balls in the microwave?【Taste test】
Nintendo’s controller capsule toys are so cool, even the machine you buy them from is awesome【Pics】
Majority of Japanese mayors say foreign residents are essential but most see good and bad effects
7-Eleven Japan’s most popular product with foreign tourists is…a unique chocolate gummy
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Japanese restaurant chain serves Dragon Ball donuts and Senzu Beans this spring
Japan Extreme Budget Travel! A trip from Tokyo to Izumo for just 30,000 yen [Part 1]
Highest Starbucks in Japan set to open this spring in the Tokyo sky
Japan’s craziest burger chain takes menchi katsu to new extreme levels
Japan Extreme Budget Travel! A trip from Tokyo to Izumo for just 30,000 yen [Part 2]
Japan has only one airport named after a samurai, so let’s check out Kochi Ryoma【Photos】
Japanese drugstore sells onigiri at pre-stupid era prices, but how do they compare to 7-Eleven?
Viral Japanese cheesecake from Osaka has a lesser known rival called Aunt Wanda
Which convenience store onigiri rice balls are the most popular? Survey reveals surprising results
Japan’s newest Shinkansen has no seats…or passengers [Video]
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Godiva creates a new drink with Japanese sake starter
Gekkeikan releases new alcohol-free Japanese daiginjo sake
Sake bread and cakes, using one of Japan’s best brews, can only be bought at one Tokyo bakery
Häagen-Dazs’ upcoming traditional Japanese sweets cafe in Tokyo has our mouths watering already
VR found to restore severe short-sightedness in Japanese study