Many, if not most, sunscreens use certain ingredients that breakdown in UV light and produce carcinogens that can be absorbed by the skin. It was a relatively large exposé a few years ago. My doctor has equally told me that the sun isn’t the primary factor in whether you get cancer and people without the genetic predisposition for skin cancer aren’t going to get it from sun exposure.

Not that I don’t wear sunscreen, but I select my sunscreen very very carefully and review the latest consumer research on cancer-causing ingredients.