SR-(POLYPEPTIDE-165 OLIGOPEPTIDE-178) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(POLYPEPTIDE-165 OLIGOPEPTIDE-178)

Safety grade: A

This multi-peptide blend is made from chains of amino acids designed to support skin's natural structure and firmness. It works by helping maintain elasticity and promoting a smoother appearance when used in serums, creams, and other skincare products.

Graded using: COSING.

Last verified: June 9, 2026