Over 1,000 years of Japanese tradition.
The ultimate secret to longevity.
Prepared for modern life in a single daily sachet.
We bring Japanese fermented superfoods to global wellness — supporting longevity and beauty.
Japan calls it the Drinkable IV
Sake Kasu is a fermented whole food containing α-EG, natural GABA, resistant protein, ferulic acid, and more. Not a blend. Not a formula. A natural ingredient that contains it all.
Sake Kasu is the nutrient rich mash left after sake is brewed. In Japan, it has been valued for centuries, used as food, skincare, and a daily drink. Outside Japan, it gets thrown away. We upcycled it into something the world can use.
6 axes of wellness in one sachet.
Fermentation concentrates rare, naturally occurring bioactive compounds — many difficult to find anywhere else in the food supply.
α-EG
α-EG, a compound found only in sake and Sake Kasu, helps stimulate the skin's own collagen production. Kojic acid brightens and evens skin tone. Ferulic acid is a powerful antioxidant that helps protect skin cells from daily damage.
Resistant Protein
Resistant protein binds fat and carries it out through the digestive tract. Fermented fiber feeds your good gut bacteria and builds a balanced microbiome.
GABA
Natural GABA calms a busy, overactive mind. SAM, produced by sake yeast, helps the body sink into deeper, more restful sleep.
Amino Acids
20 free amino acids, already broken down by fermentation, absorb fast and feed the body directly. B vitamins formed in the same process turn food into steady, lasting energy.
Resistant Protein
Resistant protein binds fat and supports heart health as part of a balanced diet.
Fermented Fiber
Fermented fiber and bioactive compounds strengthen healthy immune function.
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.
One sachet, anywhere your day goes.
Blend it, stir it, sip it — kasu slips quietly into the routine you already have.
On the go
At breakfast
In your blend
At the market