NONAPEPTIDE-31 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
NONAPEPTIDE-31
Safety grade: A
Nonapeptide-31 is a small chain of amino acids (the building blocks of proteins) created in a laboratory. It works to help keep skin looking smooth and firm by supporting the skin's natural structure.
This ingredient conditions and improves skin texture by helping to maintain skin elasticity and firmness, resulting in a smoother and more refined appearance.
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