Colorant

Basic Yellow 29

Hair dyeing (semi-permanent cationic dye)
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Hair dyeing (semi-permanent cationic dye)

Purpose

Function

Hair dyeing (semi-permanent cationic dye)
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Banned
Safety
POOR
US
Permitted
Absorptionlow
Sensitizationlow
MoSnot established
NOAEL95 mg/kg
ConcernHigh
Verdict

Contains methosulfate counter-ion; verify methyl sulfate residual levels below regulatory limits; hydrazono moiety is a structural alert for genotoxicity screening

US Note

Exempt under coal-tar hair dye provision; caution labeling required

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

Category
Colorant
Updated
Apr 23, 2026

No registry identifiers available for this ingredient.