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

ACETYL ARGININE

Safety grade: A

Acetyl Arginine is a modified form of the amino acid arginine, which is a building block naturally found in skin. It's designed to help skin retain moisture and feel soft and supple.

This ingredient is used in skincare products to hydrate and condition the skin while improving its texture and moisture barrier function.

Graded using: COSING.

Last verified: May 26, 2026