SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-OLIGOPEPTIDE-2 HEXAPEPTIDE-40) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-OLIGOPEPTIDE-2 HEXAPEPTIDE-40)

Safety grade: A

This ingredient is a blend of proteins derived from rainbow trout that work together to nourish and condition skin. These small protein fragments help maintain skin's natural moisture barrier and support its overall health and appearance when used in skincare products.

Graded using: COSING.

Last verified: June 9, 2026