The ingredient narratives reshaping clean beauty.
Hadasei-3 Ferment Complex
aka hadasei-3 · akita rice ferment · okinawa algae · uji green tea ferment
Tatcha's proprietary fermentation-derived complex of Akita rice, Uji green tea, and Okinawa algae — the formulation backbone of the brand's hero Dewy Skin Cream and Essence. Trademarked by Tatcha; the constituent ferments are well-documented but the proportions and processing are proprietary. Notable as the moment a Japanese ferment narrative crossed into U.S. luxury skincare.
- polyphenol antioxidant load (green tea catechins)
- rice ferment postbiotic activity
- marine algae polysaccharide humectancy
- hydrating creams (Tatcha Dewy Skin Cream)
- essences
- hero serums
Proprietary blend — concentration not disclosed. Used as the active backbone in Tatcha's hydration and barrier portfolio. The component ferments (rice, tea, algae) are widely available unbranded for indie formulators wanting a similar profile.
Brand-trademarked complex — performance claims are tied to Tatcha's clinical work and not transferable. Verify the specific formula's claim, not the complex name.
Positive within Tatcha's positioning; proprietary complexes generally polarize transparency-focused readers.
The ingredient narratives reshaping clean beauty.
Hadasei-3 Ferment Complex
aka hadasei-3 · akita rice ferment · okinawa algae · uji green tea ferment
Tatcha's proprietary fermentation-derived complex of Akita rice, Uji green tea, and Okinawa algae — the formulation backbone of the brand's hero Dewy Skin Cream and Essence. Trademarked by Tatcha; the constituent ferments are well-documented but the proportions and processing are proprietary. Notable as the moment a Japanese ferment narrative crossed into U.S. luxury skincare.
- polyphenol antioxidant load (green tea catechins)
- rice ferment postbiotic activity
- marine algae polysaccharide humectancy
- hydrating creams (Tatcha Dewy Skin Cream)
- essences
- hero serums
Proprietary blend — concentration not disclosed. Used as the active backbone in Tatcha's hydration and barrier portfolio. The component ferments (rice, tea, algae) are widely available unbranded for indie formulators wanting a similar profile.
Brand-trademarked complex — performance claims are tied to Tatcha's clinical work and not transferable. Verify the specific formula's claim, not the complex name.
Positive within Tatcha's positioning; proprietary complexes generally polarize transparency-focused readers.