How Dangerous Are Your Cosmetics?

Each product is ranked according to its ingredients' potential to:
Cause cancer
Trigger allergic reactions
Interfere with the endocrine (hormonal) system
Impair reproduction or damage a developing fetus

Any harmful impurities in the product are also considered. Containing unstudied ingredients or a "penetration enhancer" that helps chemicals get absorbed through the skin also enter into the equation, as does any violation of industry safety recommendations surrounding its use.

Environmental Working Group
Mercola.com