R's KOSO - Japanese Postbiotic Drink
“Koso” is a fermented drink made with traditional Japanese methods. R’s KOSO is crafted from over 100 fruits, vegetables, and plants, rich in probiotics, prebiotics, and postbiotics. Our collection supports a Healthy Gut, Better Mood, Immune Health, and Healthy Weight—available in original, lower-sugar, shots, and trial packs.
