Skin Conditioning

Acetyl Aspartic Acid

INCI: ACETYL ASPARTIC ACID
CAS 997-55-7 (N-Acetyl-DL-aspartic acid) / 2545-40-6 (N-Acetyl-L-aspartic acid)
N-Acetyl- L-Aspartic Acid,(2S)-2-Acetamidobutanedioic acid
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

N-Acetyl- L-Aspartic Acid,(2S)-2-Acetamidobutanedioic acid

Purpose

Function

Skin conditioning
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
GOOD
US
Permitted
Absorptionlow
Sensitizationlow
MoSnot established
ConcernLow
Verdict

N-Acetylaspartic acid is an endogenous metabolite abundant in CNS tissue with minimal concern at cosmetic use levels.

US Note

No specific FDA restriction

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
997-55-7 (N-Acetyl-DL-aspartic acid) / 2545-40-6 (N-Acetyl-L-aspartic acid)
INCI
ACETYL ASPARTIC ACID
Category
Skin Conditioning
Updated
Apr 2, 2026