Blue 1
INCI: CI 42090
CAS 3844-45-9
Colorant, Hair Dyeing Agent
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
Colorant, Hair Dyeing Agent
Purpose
Function
Colorant, Hair Dyeing Agent
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Permitted
Safety
GOOD
US
Permitted
EU Max Concentration0.5% (hair dye use; no limit as general colorant under Annex IV Part 1)
Absorptionlow
Sensitizationnone
MoSadequate
NOAEL200 mg/kg
ConcernLow
Flags
eu_children_restrictedepa_safer_alternativeifra_fragrancefda_food_additive
Verdict
One of the safest synthetic colorants with extensive safety record and extremely high margin of safety (>100).
US Note
Permanently listed color additive (FD&C Blue No. 1) since 1969; batch certification required. Approved for general use in food, drugs, and cosmetics with no concentration cap.
Assessment
Ratings
Reference