SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-58 HEXAPEPTIDE-40) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(METHIONYL S-RAINBOW TROUT OLIGOPEPTIDE-1 SH-POLYPEPTIDE-58 HEXAPEPTIDE-40)

Safety grade: A

This ingredient is a blend of protein fragments derived from rainbow trout that work to moisturize and condition skin. These natural peptides help improve skin texture and support the skin's protective barrier, making it commonly used in anti-aging and hydrating skincare products.

Graded using: COSING.

Last verified: June 9, 2026