“These lip glosses can make more of the light rays penetrate directly through the skin instead of getting reflected off of the skin’s surface,” says Dr. Christine Brown, a dermatologist at Baylor University Medical Center in Dallas. (You're covered, however, if you wear lip gloss with SPF.)

At worst, say some dermatologists, the resulting sun damage can lead to potentially fatal forms of skin cancer. An estimated 3,500 new cases of skin cancer of the lips are diagnosed each year, and 90 percent of those cancers are squamous cell carcinoma. While that form of cancer isn't usually particularly serious, it can be more aggressive on the lips than on other parts of the skin. If left untreated, it can cause disfigurement, and in very few cases, it can spread to other organs and become deadly.

http://www.msnbc.msn.com/id/24190829/

The mistake we make is to accept any given product because:

a) It brings in profit
b) It "looks good"

This logic has brought us to environmental collapse and a heap of products that are dangerous to our health. Let's get rid of these right away, because you as well as I know that we don't need most of this junk in the first place!