That said, if you do prefer the idea of chemical-free sunscreens, there's one ingredient to look for: " Zinc oxide, a physical blocker, is the only ingredient you need for excellent broad-spectrum protection," says David Hershthal, a professor of dermatology at the University of Miami Miller School of Medicine. But physical sunscreens can be helpful for anyone with sensitive skin, since they're less likely to exacerbate irritation and redness. The current consensus on oxybenzone is that the hormone fluctuations are not clinically significant. The scientists concluded that the fluctuations were not tied to the chemical. But after four days of application, that change was no longer present. In a 2004 study, researchers found that on the first day after applying a sunscreen with oxybenzone, both young men and postmenopausal women experienced a drop of testosterone levels. For oily or acne-prone complexions: Go for an oil-free product, such as Neutrogena Sport Face Oil-Free Lotion SPF 70+, which should be less likely to contribute. Still, that doesn't mean it's a toxic substance. Also referred to as BP3, it's a member of the phenol family that has become so omnipresent, it's been estimated that traces can be found in the urine of 96 percent of the U.S. Best for Combination Skin: Thank You Farmer Sun Cream at Amazon. Oxybenzone, probably the most notorious UV filter, was approved by the FDA way back in 1978. Best for Sensitive Skin: Beauty of Joseon Relief Sun Sunscreen SPF50+ PA++++ at. Studies on the subject (which have mainly involved rats, not humans) have been somewhat inconclusive. But there's some evidence that they might disrupt hormones. And chemical sunscreen ingredients-often with names ending in -salate or -benzone-can give a better look and feel to skin-care products than physical sunscreens since they tend to sink into skin readily and dry clear. Let us break it down for you: We're pro-sunscreen all the way.
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