R-MUSSEL POLYPEPTIDE-1 R-MUSSEL OLIGOPEPTIDE-1 SH-POLYPEPTIDE-47 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
R-MUSSEL POLYPEPTIDE-1 R-MUSSEL OLIGOPEPTIDE-1 SH-POLYPEPTIDE-47
Mussel Peptides
Safety grade: A
This ingredient is a protein extract derived from mussels that has been broken down into tiny amino acid chains called peptides. These small protein fragments are easily absorbed and help restore moisture and strength to hair and skin.
Mussel peptides work as a conditioning agent that helps smooth the hair cuticle, improve skin hydration, and strengthen both hair and skin by providing essential amino acids and proteins.
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