TETRAPEPTIDE-37 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
TETRAPEPTIDE-37
Safety grade: A
This is a small chain of amino acids (the building blocks of proteins) that is created in a laboratory. It works to help keep skin soft, smooth, and hydrated.
Tetrapeptide-37 is used in skincare products to condition and improve the feel of skin by helping it retain moisture and maintain a smooth, supple 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