ACETYL DIPEPTIDE-1 CETYL ESTER is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

ACETYL DIPEPTIDE-1 CETYL ESTER

Safety grade: A

This is a lab-created ingredient made by combining small protein fragments (dipeptides) with a waxy substance. It works like a lightweight moisturizer that helps smooth and soften both hair and skin.

This ingredient coats and conditions hair and skin by forming a protective layer that locks in moisture, reduces frizz, and improves softness and shine.

Graded using: COSING, FDA.

Last verified: May 26, 2026

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