SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-16 HEXAPEPTIDE-40) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-16 HEXAPEPTIDE-40)

Safety grade: A

This ingredient is derived from rainbow trout and contains amino acid chains that work to support skin's natural moisture barrier and improve texture. It's used in skincare products to help keep skin hydrated and promote a smoother, more resilient complexion.

Graded using: COSING.

Last verified: June 9, 2026