Cosmetic Ingredient

Acetyl Mandelic Acid

INCI: ACETYL MANDELIC ACID
CAS 51019-43-3 / 7322-88-5 EC - / -
Benzeneacetic acid, .alpha.-(acetyloxy)-,
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Benzeneacetic acid, .alpha.-(acetyloxy)-,

Purpose

Function

Buffering
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
MODERATE
US
Permitted
Absorptionlow
Sensitizationmoderate
MoSnot established
ConcernModerate
Verdict

As an AHA ester, potential for pH-dependent irritation; hydrolysis product is mandelic acid (AHA). Treat with AHA-level precautions for pH and concentration.

US Note

No specific FDA restriction; falls under general cosmetic safety requirements (MoCRA)

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
51019-43-3 / 7322-88-5
EC Number
- / -
INCI
ACETYL MANDELIC ACID
Category
Cosmetic Ingredient
Updated
Apr 2, 2026