TRIPEPTIDE-4 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
TRIPEPTIDE-4
Safety grade: A
Tripeptide-4 is a small protein fragment made up of three amino acids linked together. It's a lab-created ingredient designed to help improve skin texture and firmness.
This ingredient is used in skincare products to condition and improve the appearance of skin by promoting a smoother, more hydrated, and firmer complexion.
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