SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-13 HEXAPEPTIDE-40) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-13 HEXAPEPTIDE-40)

Safety grade: A

This ingredient is derived from rainbow trout and contains natural proteins called peptides. When used in skincare products, it helps support the skin's structure and may improve moisture retention. It works by delivering amino acids that can help maintain skin firmness and smoothness.

Graded using: COSING.

Last verified: June 9, 2026