
Fatbergs be gone with this new method of washing your rear without a Japanese washlet toilet.
Japan is well known around the world for being at the forefront of rear-cleaning technology. From the ever-popular Japanese toilet, with its washlet bidet system, to the toilet paper dispenser that neatly folds the end of the paper for you, companies in Japan are continually searching for better ways to look after your bottom, and now one manufacturer is attracting attention with a new method that’s environmentally friendly too.
Called Momo Awawa, which translates to “foaming peach“, this new product is an “oshiri awa soap“, or “bottom foaming soap“, and it’s designed to be used either on its own or in conjunction with the Japanese washlet cleaning system.
It’s easy to use – simply spray it on a sheet of toilet paper and then wipe it on your butt after doing your business.
As this image shows, the product works to clear away the excrement entirely, while the toilet-paper-only method ends up smearing it on your skin, leaving it there to cause problems like itching throughout the day.
Given that many Japanese homes have a washlet toilet at home, it’s suggested that the soap be used on your butt immediately after pooping, followed by a rinse of water from the washlet to give you a refreshingly satisfying clean. However, research suggests that many people avoid using the washlet, especially when away from home, due to concerns about who’s used it before and fears that the nozzle may be dirty.
▼ Research shows 42 percent of men and 69 percent of women don’t use washlets.
That’s where this handy travel-sized bottle comes in handy, so you can give your butt that just-washed feel without the use of a washlet, and more importantly, without using wet-wipes, which are wreaking havoc on the world’s sewerage systems.
The problem of fatbergs in sewers is an increasing concern at the moment, as these congealed lumps, which form when grease mixes with non-biodegradbale solids like wet wipes, creates an enormous amount of waste which sewerage systems can’t handle, increasing the likelihood of damage and flooding. Australian water and sewerage corporation TasWater, for example, asks that people never flush flushable wipes and only flush the four Ps: Pee, poo, puke and paper. A bottom soap like Momo Awawa is a simple way to abide by these recommendations while helping to solve the growing environmental problem of non-biodegradable waste at the same time.
▼ Not only can the soap be used by adults, but it’s also handy for babies and the elderly too.
Unlike regular soaps, which can disrupt the normal PH balance of your skin and make it more alkaline, the Momo Awawa contains natural ingredients like blueberries, wild thyme, persimmon tannins and rooibos, which have a slight acidity to better match the natural condition of the skin. This makes it suitable for all skin types, and particularly those with haemorrhoids and sensitive skin.
It’s also ideal for those times when skin conditions can flare up, like during the heat of summer and on camping trips.
Created by a Japanese duo who are billing the product as a “world first”, the Momo Awawa has been developed in conjunction with two Japanese corporations, who are aiming to mass produce the bottom soap with the help of a crowdfunding campaign on Greenfunding.
Demand for the Momo Awawa has been overwhelming, as they’ve already smashed their crowdfunding goal of 300,000 yen (US$2,700), raising a whopping 4.415 million yen ($39,735.89), 1,471 percent of its target total, with 67 days remaining on the campaign.
There are still a number of support tiers available for patrons to choose from, ranging from a 3,500 yen pledge, which gets you one 50-millilitre (1.7-ounce) and one 300-milliltre bottle at a 30-percent discount, up to a 13,500-yen pledge, which gets you five bottles in each size at a 38-percent discount.
Given the huge demand for the product, and the vision of its creators, who hope to herald in a “new era of washing your bottom with foam”, it’s highly likely that we’ll see the Momo Awawa go into mass production soon. Until then, we’ll just have to make do with entertaining ourselves on the loo with toilet paper origami and shiba inu.
Source: Greenfunding/(株)Hundred Innovation (株)リミットエイト via Net Lab
Images: Greenfunding/(株)Hundred Innovation (株)リミットエイト












Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
Japan’s adorable pudding chick becomes a transit card mascot
Pikachu cakes and other adorable Pokémon 30th anniversary food coming to Tokyo luxury hotel
Sushi Pizza surprises diners in one of the best food destinations in Japan
Gigantic gacha machine appears in Tokyo department store for capsule toy celebration
Japanese convenience store Lawson launches new “mini supermarket” chain, L Minimart
Japan’s adorable pudding chick becomes a transit card mascot
Pikachu cakes and other adorable Pokémon 30th anniversary food coming to Tokyo luxury hotel
Sushi Pizza surprises diners in one of the best food destinations in Japan
Gigantic gacha machine appears in Tokyo department store for capsule toy celebration
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
The Japan Burger Championship 2026 in Yokohama next month is the ultimate battle of the beef
133-year-old Japanese company’s cookies go beyond matcha with dashi and shichimi flavors
Mr. Sato takes a walk on Tokyo’s American-style street to get some American/Japanese ice cream
Starbucks Japan releases a new limited-edition Frappuccino inspired by espresso affogato
Tokyo’s new extra-expensive ramen restaurant is dividing opinions, so we tried a bowl
Gundam teams up with 300-year-old daruma maker for wood-carved anime mecha figures[Photos]
Japan’s instant ramen snack theme park features an athletic course even adults can enjoy
Pizza Hut Japan’s drinkable curry pizza is here – Is it all we dreamed it would be?[Taste test]
Krispy Kreme releases new limited-edition fox doughnuts at only four stores in Japan
Japanese temple burns to the ground, fire burning inside for 1,200 years unharmed
Two new Sailor Moon art manhole covers are coming to Usagi’s real-world Tokyo neighborhood
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Kanji ice cream becomes a sell-out hit in Japan
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Japan now has gyoza doughnuts, and they taste like no other doughnut we’ve tried before
Studio Ghibli releases new anime keychains that are like miniature figurines
Japan has a new cute and clever sunblock for cat lovers
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
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
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
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Japan’s real-world Pokémon hot spring’s first photos are here![Photos]
The Japan Burger Championship 2026 in Yokohama next month is the ultimate battle of the beef
133-year-old Japanese company’s cookies go beyond matcha with dashi and shichimi flavors
Mr. Sato takes a walk on Tokyo’s American-style street to get some American/Japanese ice cream
Starbucks Japan releases a new limited-edition Frappuccino inspired by espresso affogato
Same name tops lists of most popular dog and cat names in Japan, and there’s probably a reason why
Another side of Kyoto – The prefecture’s top 10 “road stations” for traveling foodies
Tokyo restaurant offers lunches for less than 1 U.S. cent…if you’re good enough at rock-paper-scissors
Tokyo’s insane Garlic Ramen is a meal, and an aroma, you’ll never forget[Taste test]
Pizza Hut Japan’s drinkable curry pizza is here – Is it all we dreamed it would be?[Taste test]
Two new Sailor Moon art manhole covers are coming to Usagi’s real-world Tokyo neighborhood
Krispy Kreme releases new limited-edition fox doughnuts at only four stores in Japan
Japan’s izakaya pubs closing at record pace, failing to attract foreign tourists
Gundam teams up with 300-year-old daruma maker for wood-carved anime mecha figures[Photos]