Skin Conditioning

1-Methylhydantoin-2-Imide

INCI: 1-METHYLHYDANTOIN-2-IMIDE
CAS 60-27-5 EC 200-466-7
4H-Imidazol-4-one, 2-amino-1,5-Dihydro-1-Methyl-
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

4H-Imidazol-4-one, 2-amino-1,5-Dihydro-1-Methyl-

Purpose

Function

Skin conditioning (skin brightening/lightening agent; reduces melanin appearance)
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
EXCELLENT
US
Permitted
Absorptionhigh
Sensitizationnone
MoSadequate
ConcernNone
Verdict

None; this is creatinine - a normal metabolic byproduct; EWG rated safe ; recommended concentration 0.5-1.0%

US Note

Permitted; endogenous metabolite with no restrictions

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
60-27-5
EC Number
200-466-7
INCI
1-METHYLHYDANTOIN-2-IMIDE
Category
Skin Conditioning
Updated
Apr 23, 2026