http://articles.mercola.com/sites/articles/archive/2006/09/16/new-problems-found-with-sunscreens.aspxA research team reports that unless sunscreen is reapplied often, the sunscreen itself can become harmful to the skin. Sunscreen works by blocking ultraviolet light. When skin is exposed to the ultraviolet radiation in sunlight, it can generate harmfulenCommunityServer 2008.5 SP1 (Build: 31106.3070)