ACETYL TETRAPEPTIDE-40 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
ACETYL TETRAPEPTIDE-40
Safety grade: A
This is a small chain of amino acids (the building blocks of proteins) that has been created in a laboratory. It's designed to help improve skin texture and appearance by supporting the skin's natural structure.
This ingredient conditions and softens the skin by helping to maintain its moisture balance and promoting a smoother, more refined skin surface.
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