WOOL CUTICLE AMINO ACIDS is graded A (Safe) by Expert·ING, based on COSING regulatory data.

WOOL CUTICLE AMINO ACIDS

Safety grade: A

Derived from sheep's wool, these natural amino acids help strengthen and smooth hair by repairing damage and sealing the outer layer. They work to reduce frizz, add shine, and improve overall texture, making hair feel softer and more manageable.

Graded using: COSING.

Last verified: June 9, 2026