Resorcinol
Hair Dye Ingredient; Chemical Intermediate
Can cause skin sensitization and irritation and has thyroid-related toxicity concerns at sufficient systemic exposure. Cosmetic use is restricted by concentration and application conditions in jurisdictions including the EU.
Why Oh Daisey rates it this way
Can cause skin sensitization and irritation and has thyroid-related toxicity concerns at sufficient systemic exposure. Cosmetic use is restricted by concentration and application conditions in jurisdictions including the EU.
What it does
Used primarily in oxidative hair dyes and certain specialized topical applications.
How to read this rating
This rating reflects the Oh Daisey ingredient standard and the evidence currently available for cosmetic use. Product safety can also depend on concentration, exposure route, formulation, manufacturing quality, and individual sensitivity.