ACETYL TETRAPEPTIDE-2 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

ACETYL TETRAPEPTIDE-2

Safety grade: A

This is a lab-made peptide (a short chain of amino acids) that works to improve skin texture and appearance. It helps condition and smooth the skin's surface.

This ingredient is used in skincare products to condition and improve the overall feel and look of skin by promoting smoother, more refined skin texture.

Graded using: COSING.

Last verified: May 26, 2026