ACETYL TETRAPEPTIDE-27 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
ACETYL TETRAPEPTIDE-27
Safety grade: A
This is a lab-created peptide (a small chain of amino acids) designed to help improve skin texture and appearance. It works by signaling skin cells to maintain their firmness and elasticity.
This ingredient conditions and improves the skin by promoting firmness and helping to maintain the skin's structural integrity, resulting in smoother and more youthful-looking skin.
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