Chemical Lipstick

Smashbox Lips Treatment SPF 15

This lip rejuvinator harbors repeat offenders including retinyl palmitate, oxybenzone and undisclosed fragrance chemicals. Smashbox stopped manufacturing the lip treatment in October for unrelated business reasons, spokeswoman Nina Van Arsdale said. It's still available through retailers, including cosmetics megastore Sephora.

"One of our top pieces of advice is to reduce the products you use with fragrance in them," said Malkan, of the Campaign for Safe Cosmetics. "There's no way of knowing what's in those fragrances."

Some brands of lipstick still contain lead, which can be ingested and accumulate in the body, potentially causing learning and behavioral disorders.