This is an amazing amazing site/guide that asks:
Have you read your ingredients? What's in your makeup? Are you sure about your lotion? Etc!
They also list "Health Concerns of Ingredients" for TONS of products:
(Ex: Overall Hazard, Cancer, Developmental & Reproductive Toxicity, and Allergies, Etc.)
They offer great, non-toxic alternatives listed in every section, from makeup to soap to sunscreen.
I honestly have played around on this site for hours.
Wouldn't you want to know if a health concern of an ingredient in your nail polish was "developmental & reproductive toxicity"?