I “preach” sunscreen use to my family, friends, and patients. I do this because sunscreen helps prevent skin cancers, but in light of the recent President’s Cancer Panel report on Cancers from Environment ‘Grossly Underestimated’ and concerns by the group Friends of the Environment, I thought perhaps I should look at the safety of the active chemicals/nanoparticles in sunscreens.
You need both UVA and UVB protection. It is the UVA rays that are most responsible for wrinkling and aging the skin. It is the UVB rays that are the most responsible for the sunburn and skin cancer formation.
According to the American Academy of Dermatology (AAD), sunscreens should ideally be water-resistant, so they cannot be easily removed by sweating or swimming, and should have an SPF of 30 or higher that provides broad-spectrum coverage against both UVA and UVB light. I think it is not worthwhile to purchase any sunscreen with an SPF higher than 55. Read more »
*This blog post was originally published at Suture for a Living*