TETRAPEPTIDE-34 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
TETRAPEPTIDE-34
Safety grade: A
This is a tiny protein fragment made up of four amino acids linked together. It's a synthetic ingredient designed to help maintain skin's firmness and elasticity.
Tetrapeptide-34 is used in cosmetics to condition and improve skin texture by supporting the skin's natural structure and promoting a more youthful, tightened 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