4-Ethylresorcinol
INCI: 4-ETHYLRESORCINOL
CAS 2896-60-8
4-Ethylresorcinol
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
4-Ethylresorcinol
Purpose
Function
Antimicrobial, Hair Dyeing, Skin Conditioning (tyrosinase inhibitor / skin lightening)
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Banned
Safety
POOR
US
Restricted
Absorptionhigh
Sensitizationmoderate
MoSnot established
NOAEL80 mg/kg
ConcernHigh
Verdict
Related compound resorcinol linked to thyroid disruption at high doses; classified as Skin Irrit. 2, Eye Irrit. 2, STOT SE 3 (respiratory); SCCS-assessed for hair dye use
US Note
Not specifically restricted by FDA; used in OTC skin-lightening products (not monographed)
Assessment
Ratings
Reference