SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-11 HEXAPEPTIDE-40) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-11 HEXAPEPTIDE-40)

Safety grade: A

This ingredient is derived from proteins found in rainbow trout and contains small amino acid chains that help support skin hydration and firmness. It works to maintain the skin's natural moisture barrier and may help improve overall skin texture and elasticity in skincare products.

Graded using: COSING.

Last verified: June 9, 2026