Don’t take our word for it. Here’s every fact on this site, with its evidence grade, its caveats, and a link to the source, so you can check us.
We start you on the strong ones: findings that have been replicated or come from one large, well-controlled study. Moderate and weak facts are here too, labeled for what they are. Use “Link to this fact” to share a single card.
Health effects / Government agency
The EU committee said in 2012 that one fragrance allergen, HICC, had caused more than 1,500 published allergy cases in a decade and should not be used in consumer products, even at 200 ppm, and that voluntary industry reductions were insufficient.
Strong evidence.
Caveats
Case counts come from published literature and are described as a severe underestimate; the 'voluntary restrictions are insufficient' judgment is the regulator's reading of available evidence; industry's counter-position is not presented in this document.
Information, not medical advice. See also: myths we won’t tell you.