SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-7 HEXAPEPTIDE-40) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-7 HEXAPEPTIDE-40)

Safety grade: A

This ingredient is derived from rainbow trout and contains natural protein fragments that help support skin's structure and elasticity. It works by nourishing the skin's outer layers, potentially improving firmness and reducing the appearance of fine lines when used in skincare products.

Graded using: COSING.

Last verified: June 9, 2026