HYDROLYZED KERATIN is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

HYDROLYZED KERATIN

Safety grade: A

Hydrolyzed keratin is a broken-down form of keratin, a natural protein found in hair, skin, and nails. It's processed to become smaller and easier for hair and skin to absorb.

This ingredient is used to strengthen and condition hair, reduce frizz and static, help products form a protective layer on the skin or hair, and attract moisture to keep hair and skin hydrated.

Graded using: COSING, FDA.

Last verified: May 26, 2026