One of the most common ingredients found in sunscreens with SPF, octinoxate is readily absorbed by our skin and helps other ingredients to be absorbed more readily. According to the Centers for Disease Control and Prevention (CDC), 97 percent of Americans have this chemical circulating in our bodies, as it can accumulate more quickly than our bodies can get rid of it. Experts also suspect that oxybenzone disrupts hormones (i.e., mimics, blocks, and alters hormone levels) which can throw off your endocrine system. When oxybenzone is absorbed by your skin, it can cause an eczema-like allergic reaction that can spread beyond the exposed area and last long after you're out of the sun. This penetration enhancer (i.e., chemical that helps other chemicals penetrate the skin) undergoes a chemical reaction when exposed to UV rays. To reap the benefits of sunscreen and sidestep the potential side effects, avoid these dubious ingredients before slathering up this summer: 6 SCARY SUNSCREEN INGREDIENTS Plus, the ingredients can generate cell-damaging free radicals when exposed to the sun. Because it is absorbed, chemical sunscreen can lead to skin irritation and other adverse reactions. Unless you're using high-end physical SPF products, sunblock can be thick and messy to apply, sometimes leaving a white sheen and residue that can clog pores and require scrubbing and rubbing to remove.Ĭhemical sunscreen, on the other hand, contains synthetic ingredients such as oxybenzone and octinoxate, which are absorbed into the skin to filter and absorb UV rays, effectively protecting deeper layers of skin. Physical sunscreen, or sunblock, contains natural minerals such as titanium dioxide and zinc oxide that cover the surface of skin to physically block or reflect broad spectrum of the sun's UVA and UVB rays. ![]() ) Luckily, not all SPF products are harmful, and not all sunscreens are created equal. ("No one is walking around with sunscreen-induced cancer, but the sun is recognized by the FDA as a known carcinogen," says Kathy Fields, M.D., an assistant clinical professor of dermatology at the University of California at San Francisco, in the. ![]() However, experts agree that the sun is still your greatest risk. While slathering your skin with the nearest SPF may seem like a keen idea, many sunscreens are loaded with some seriously questionable ingredients that can induce adverse effects on your skin and body, (i.e., allergic reactions, hormone disruption, and premature aging), and might even increase your cancer risk. As the summer sun warms and waxes, protecting your skin from sunburn and UV damage should be a hot priority.
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