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

HYDROLYZED SERUM PROTEIN

Safety grade: A

This is a protein derived from animal serum (blood) that has been broken down into smaller pieces so it can be absorbed by hair and skin. It acts like a moisturizing treatment that helps repair and strengthen damaged hair and skin.

This ingredient works as a moisturizer and protectant that smooths the hair cuticle to reduce frizz, adds shine, conditions both skin and hair, and helps reduce static electricity.

Graded using: COSING.

Last verified: May 26, 2026