?-methyl styrene (alpha-methylstyrene)
Severity 8/10cosmetic ingredient
Is ?-methyl styrene (alpha-methylstyrene) safe?
?-methyl styrene (alpha-methylstyrene) carries significant published concerns (cancer concern, allergy risk, irritation, environmental impact).
Documented concerns
Cancer concern
8/10Classified by IARC Group 2B; EU CLP Carc. 2; California Prop 65 (cancer).
Allergy risk
8/10Classified by EU CLP Skin Sens. 1B.
Irritation
8/10Classified by EU CLP Eye Irrit. 2.
Environmental impact
8/10Classified by EU CLP Aquatic Chronic 2.
Related ingredients
Ingredients with a similar role or shared type of concern — useful for comparing what's on your label.
Checking a specific product? Paste its full ingredient list and we'll analyze everything at once.