We use a lot of data sources when researching ingredients and building our database. 

We've listed them below so you can do your own homework if you'd like.

Breast Cancer Prevention Partners

Campaign for Safe Cosmetics 

Cosmetic Ingredient Review (CIR)

The Derm Review

Environmental Working Group 

Environmental Canada: Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry

European Commission Ingredient Database

FDA: Food and Drug Administration Website 

Japan's Standards for Cosmetics

PubMed: NLM (National Library of Medicine).

Skin Care Lab