Cited from the same panels dermatologists use.
Every flag in the app traces back to one of four sources — named, dated, and linked.
Four sources · Actively maintainedNACDG
North American Contact Dermatitis Group
Biennial patch-test surveillance across North American dermatology clinics. The prevalence percentages cited on every flag come from here.
ACDS
American Contact Dermatitis Society
Maintains the Core 80 and Extended patch-test panels. Defines the allergens dermatologists routinely screen for.
EBS
European Baseline Series
The standard EU patch-test panel, maintained by the European Society of Contact Dermatitis. Cross-referenced into the cross-reactivity database.
EU 1223/2009
EU Cosmetics Regulation
The legal basis for the endocrine disruptor screen. Banned and restricted ingredients, including UV filters still legal in US products.
How the four sources combine.
MySkinIQ checks every ingredient against allergens from NACDG, ACDS, and EBS, then walks each match through cross-reaction families derived from the same surveillance data, and finally screens for the 65 endocrine disruptors restricted under EU 1223/2009.
Read the full cross-reactivity methodology →