Colorant

Active: Resorcinol

INCI: RESORCINOL
CAS 108-46-3
Oxidative hair dye intermediate, Antiseptic, Hair Conditioning
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Oxidative hair dye intermediate, Antiseptic, Hair Conditioning

Purpose

Function

Oxidative hair dye intermediate, Antiseptic, Hair Conditioning
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Banned
Safety
POOR
US
Permitted
EU Max Concentration1.25%
Absorptionlow
Sensitizationlow
MoSadequate
NOAEL80 mg/kg
ConcernModerate
Flags
potential-allergenendocrine_disruptorifra_fragrancefda_food_additiveeu_cosing_listedjecfa_safe
Verdict

Potential endocrine disruptor (EU Group A priority list) ; strong skin sensitizer (EC3 = 1.4%) ; thyroid disruption concerns; mandatory label warnings: "Contains resorcinol"; "Do not use to dye eyelashes" ; occupational exposure limit: 10 ppm / 45 mg/m³ (EU, skin notation)

US Note

Permitted in OTC drug products (acne, dandruff); permitted in hair dyes; FDA monitors under MoCRA

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
108-46-3
INCI
RESORCINOL
Category
Colorant
Updated
Apr 2, 2026