TETRAPEPTIDE-15 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

TETRAPEPTIDE-15

Safety grade: A

Tetrapeptide-15 is a small chain of amino acids (the building blocks of proteins) created in a laboratory. It works to help keep skin hydrated and improve its overall texture and appearance.

This ingredient conditions and moisturizes the skin, helping to improve skin texture, elasticity, and hydration for a smoother, more supple complexion.

Graded using: COSING.

Last verified: May 26, 2026

Other Skin Conditioning ingredients