Colorant

2-Methylresorcinol

INCI: 2-METHYLRESORCINOL
CAS 608-25-3 EC 210-155-8
1,3-Benzenediol, 2-methyl-
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

1,3-Benzenediol, 2-methyl-

Purpose

Function

Hair dye (oxidative and non-oxidative formulations)
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Banned
Safety
POOR
US
Permitted
EU Max Concentration1.8%
Absorptionlow
Sensitizationmoderate
MoSadequate
NOAEL100 mg/kg
ConcernModerate
Flags
eu_cosing_listed
Verdict

Clastogenic in vitro (chromosome aberrations in V79 cells ± S9) but negative in vivo micronucleus. Severely irritating to rabbit eye when undiluted (ocular corrosion). Acute oral LD50 very low: 390 mg/kg bw in mice. Not for use outside hair dye applications.

US Note

Permitted; CIR reviewed. Coal tar hair dye exemption applies under FD&C Act Section 601(a)

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
608-25-3
EC Number
210-155-8
INCI
2-METHYLRESORCINOL
Category
Colorant
Updated
Apr 2, 2026