Skin Conditioning

Acetyl Tripeptide-1

INCI: ACETYL TRIPEPTIDE-1
CAS Not assigned (synthetic peptide, no CAS in CosIng)
Acetyl Tripeptide-1 is product obtained by the acetylation of Tripeptide-1
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Acetyl Tripeptide-1 is product obtained by the acetylation of Tripeptide-1

Purpose

Function

Skin Conditioning
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
EXCELLENT
US
Permitted
Absorptionnegligible
Sensitizationlow
MoSadequate
ConcernNone
Verdict

Minimal. Well-studied peptide (GHK sequence acetylated). CIR-reviewed 2018. Verify peptide purity and sequence identity via supplier CoA. Often sold as palmitoyl tripeptide-1 in commercial trade blends.

US Note

Permitted in cosmetics. CIR safety assessment (2018) concluded tripeptide-1 and its derivatives are safe in present practices of use and concentration.

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
Not assigned (synthetic peptide, no CAS in CosIng)
INCI
ACETYL TRIPEPTIDE-1
Category
Skin Conditioning
Updated
Apr 2, 2026