HYDROXYSTEROID OXIDOREDUCTASE is graded A (Safe) by Expert·ING, based on COSING regulatory data.
HYDROXYSTEROID OXIDOREDUCTASE
Safety grade: A
This is an enzyme (a type of protein that speeds up chemical reactions) that occurs naturally in skin and helps regulate hormone-like molecules in the body. In skincare products, it works to maintain skin balance and support the skin's natural conditioning processes.
This enzyme helps condition and maintain skin by regulating steroid metabolism, supporting the skin's natural barrier function and overall skin health.
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