evidence: And then you catch a glimpse of a report saying the ingredients in sunscreen could actually cause cancer. Suddenly, you’re wary of a product you thought was protecting you. [...] The most important benefit of sunscreens is that they protect you from UV rays that can cause skin cancer. Skin cancers are the most common cancers in the U.S. Around 9,500 people are diagnosed with some form of skin cancer every day in the U.S., and two people die of skin cancer every single hour in this country. [...] Although there isn’t any evidence that sunscreens cause cancer, some studies have shown potential problems with certain ingredients in various sunscreen products.