Antioxidant

Ascorbyl Stearate

INCI: ASCORBYL STEARATE
CAS 25395-66-8 (also 10605-09-1 for L-form) EC 246-944-9
(Stearoyloxy)-L-ascorbic acid
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

(Stearoyloxy)-L-ascorbic acid

Purpose

Function

Antioxidant
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
EXCELLENT
US
Permitted
Absorptionmoderate
Sensitizationnone
MoSnot established
NOAEL834 mg/kg
ConcernNone
Verdict

Well-established safety profile with no significant concerns in cosmetic use.

US Note

CIR-reviewed: Safe as used — assessed as part of the ascorbic acid/ascorbyl esters group

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
25395-66-8 (also 10605-09-1 for L-form)
EC Number
246-944-9
INCI
ASCORBYL STEARATE
Category
Antioxidant
Updated
Apr 2, 2026