R-MUSSEL POLYPEPTIDE-1 R-MUSSEL OLIGOPEPTIDE-1 SH-POLYPEPTIDE-49 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
R-MUSSEL POLYPEPTIDE-1 R-MUSSEL OLIGOPEPTIDE-1 SH-POLYPEPTIDE-49
Mussel Polypeptide
Safety grade: A
This ingredient is a protein extract derived from mussels that contains small chains of amino acids. It works to strengthen and moisturize both hair and skin by helping them retain water and maintain their natural protective barrier.
This ingredient conditions and softens hair and skin by providing hydration and helping to improve texture and smoothness.
Graded using: COSING.
Last verified: May 26, 2026
Other Skin Conditioning ingredients
- TOCOPHEROL — Grade A
- PROPYLENE GLYCOL — Grade A**
- XANTHAN GUM — Grade A
- DIMETHICONE — Grade A
- TOCOPHERYL ACETATE — Grade A
- PANTHENOL — Grade A
- CAPRYLYL GLYCOL — Grade A
- ETHYLHEXYLGLYCERIN — Grade A