Thank you
The best thing I ever tried. Love it I have been taking it everyday since September this year.
By Ana B.
Monday, November 2, 2026 · Customer reviews of US businesses

The Fair Hearing score
Excellent
22 reviews
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Japanese Prebiotic Superfood Drink & Cleanse. KOSO is Made from 100+ fruits & veggies. Koso Cleanse is The Leading Way To Improve Your Gut Health.🇯🇵🇺🇸
R's KOSO, Inc. (rskoso.com) has 22 customer reviews on The Fair Hearing, with an average rating of 4.6 out of 5.
22 approved reviews, newest moderated first
The best thing I ever tried. Love it I have been taking it everyday since September this year.
By Ana B.
I love this product and drink it every morning. What's impressive is that it's delicious and very healthy.
By Karin G.
I have been into R’s Koso since January 2021 and taking it as my daily breakfast replacement. I have done 3 days cleansing schedule too and it is effective on loosing weight, improving gut health. However this product is on expensive side, hence I may want to take a break time to time in the Koso subscription to match up my budget.
By Nivedita P.
It tastes amazing and it is so nutritious! Even my kids love it. We all drink it in the morning. It works well for our guts.
By Satomi
At first taste I did not like this beverage, but by day 2 I found it palatable (and a few days in I grew to like the taste). It seemed to help some with my stomach issues, but did not completely resolve my issues. For the cost, I needed it to do more.
By Joleen
The flavor I like very much! I would keep drink it as beverages! The price Just too high for that! I was hoping after I drunk two bottles of Koso,My bow movements would change! It didn’t change, maybe bit of worse then before! I’m still out there hunting for a better product works for my issue!
By Cody A.
Great product! Tastes amazing with sparkling water as a breakfast replacement or for a full day cleanse. Highly recommend!
By Georgia C.
Quick, efficient delivery of delicious KOSO drink. My stomach has never felt more healthy.
By MM