Especially for the dark complected among us, the metal formulas can leave a noticeable white coating. One additional problem with zinc and titanium based creams? They don’t look great. By contrast, oxybenzone-based creams degrade evenly. Additionally, as they degrade, the metals form clumps on the skin’s surface - this leads to patches of protected skin and patches without any protection at all. Swimmers and other active people will have to reapply frequently. Their protection begins to degrade after two hours, compared to zinc-based lotions’ eight hours.īut Zinc and titanium lotions are by no means perfect: because they sit on the surface of the skin, they are less resistant to water. While the cancer link to oxybenzone isn’t clear, there are other reasons a person might not want to use a chemical-based sunscreen: first of all, they have a shorter half-life, according to Rigel. Krant, MD, MPH, founder of the Art of Dermatology in New York City, and an assistant clinical professor of dermatology at SUNY Downstate Medical Center. “Oxybenzone is one of the oldest and most used sunscreen ingredients in the world, having been in use since the 1970s, and to date there have been no human cases of hormonal disruption documented,” says Dr. Additionally, oxybenzone is an endocrine disruptor that mimics estrogen - a concern for many people who try to avoid synthetic hormones. That’s because old research in rodents has shown a relationship between oxybenzone and melanoma, though the link is inconclusive and most accredited medical organizationsdo not consider it viable. Some people prefer chemical-free sunscreens to the more common lotions and sprays, made with Oxybenzone. The other type of sunscreen is typically made with the chemical Oxybenzone, and is referred to as “organic” or “chemical” sunscreen. “They’re just like a mirror, reflecting ultraviolet light off,” he says. Darrell Rigel, Clinical Professor of Dermatology at New York University Medical Center. Think of them almost like a giant reflector, says Dr. Zinc and titanium sit on the surface of the skin, serving as a reflective, protective cover against damaging sun rays. So-called “chemical free” sunscreens are made with a heavy metal - usually oxidized zinc, though sometimes titanium oxide. We asked top dermatologists for their tips on what to look for as you stock up on your summer sunscreen supply: But new research has suggested that some chemicals found in leading sunscreen brands can actually increase the risk of some melanoma skin cancers. On the one hand, the block is essential to prevent the skin’s absorption of damaging sun radiation that can cause free-radical damage and lead to skin cancer and premature aging. The Food and Drug Administration recommends that consumers look for three things in their sunscreen: a “sun protection factor” (SPF) of 15 or more, “broad spectrum” protection and water resistance.īut with so many options on store shelves - not to mention an impending change in the way that sunscreens are labeled and rated - selecting the appropriate sun protection can be a confusing endeavor. In fact, more than 3.3 million people are diagnosed with skin cancer in the U.S. Sun damage is responsible for 90 percent of nonmelanoma skin cancers in the United States, itself the most common form of cancer in the country, according to the Skin Cancer Foundation.
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