SH-POLYPEPTIDE-103 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SH-POLYPEPTIDE-103

Safety grade: A

A protein-based ingredient derived from yeast that helps strengthen and condition hair and skin. It works by forming a protective layer that improves texture, adds shine, and reduces frizz. Commonly used in hair care products like shampoos and conditioners.

Graded using: COSING.

Last verified: June 9, 2026