6. Certain sunscreens
While exposure to too much sunlight damage may cause cancer, overusing the wrong type of sunscreen also possess its own risks. Benzophenone-3 (or oxybenzone), a common ingredient in sunscreens, produces free radicals, which can trigger DNA damage and cancer growth. The FDA is limiting benzophenone-3 to 6 percent — and hasn’t outright banned the chemical — because of what the agency calls its effectiveness in protecting against UV rays.
How to avoid it: Check out this list of the best sunscreens. And make it a point to read sunscreen labels and avoid purchasing any that contain harsh chemicals such as para amino benzoic acid, octyl salicyclate, cinoxate, dioxybenzone, phenylbenzimidazole, homosalate, menthyl anthranilate, octocrylene, methoxycinnamate, parabens and, of course, oxybenzone. To avoid any of these harmful ingredients, you can even make your own homemade sunscreen with essential oils, coconut oil, shea butter and non-nano zinc oxide.