HYDROLYZED FIBROIN is graded A (Safe) by Expert·ING, based on COSING regulatory data.
HYDROLYZED FIBROIN
Safety grade: A
Hydrolyzed fibroin is a protein derived from silk that has been broken down into smaller, more absorbable components. It helps hair and skin retain moisture and improves their texture and softness.
This ingredient conditions and moisturizes both hair and skin by forming a protective layer that helps lock in hydration and improve overall softness and smoothness.
Graded using: COSING.
Last verified: May 26, 2026
Other Skin Conditioning ingredients
- TOCOPHEROL — Grade A
- PROPYLENE GLYCOL — Grade A**
- XANTHAN GUM — Grade A
- DIMETHICONE — Grade A
- TOCOPHERYL ACETATE — Grade A
- PANTHENOL — Grade A
- CAPRYLYL GLYCOL — Grade A
- ETHYLHEXYLGLYCERIN — Grade A