SR-(METHIONYL R-GREEN MUSSEL OLIGOPEPTIDE-1) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-(METHIONYL R-GREEN MUSSEL OLIGOPEPTIDE-1)

Safety grade: A

This ingredient comes from green mussels and contains natural protein fragments that may help support skin's natural repair processes. When used in skincare products, it's designed to help maintain skin firmness and promote a smoother appearance over time.

Graded using: COSING.

Last verified: June 9, 2026