Aluminum Hydroxide
INCI: ALUMINUM HYDROXIDE
CAS 21645-51-2 EC 244-492-7
Aluminium hydroxide
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
Aluminium hydroxide
Purpose
Function
Opacifying, Emollient, Buffering
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Permitted
Safety
GOOD
US
Permitted
EU Max ConcentrationCategory-specific elemental aluminum limits per SCCS/1662/23
Absorptionnegligible
Sensitizationnone
MoSadequate
NOAEL200 mg/kg
ConcernLow
Flags
inorganicopacifierbuffering-agentfda_food_additive
Verdict
Chemically inert aluminum hydroxide used as opacifier and buffering agent; unlike soluble aluminum salts does not penetrate meaningfully; safe at typical cosmetic concentrations
US Note
CIR reviewed; considered safe as used in cosmetics; chemically inert in topical application
Assessment
Ratings
Reference