![]() ![]() This type of UVA ray comes through most window glass, so even when you’re inside - or in your car - your skin can be damaged. ![]() Over time, UVA rays cause cumulative damage to the skin.” “Although UVA rays don’t cause sunburns nearly at the rate of UVB rays, they’re potentially even more dangerous, because they penetrate more deeply into the skin, which may result in skin cancer, damaged collagen, wrinkles, and the irregular pigmentation we see as brown spots. “Most people know they’re at risk of sunburn and skin damage in bright sunshine and warm weather, but they don’t always realize that harmful UVA rays are present all year long,” Dr. Why it’s important to wear sunscreen year-round UPF stands for universal protection factor, and this signifies how much radiation (both UVA and UVB) a fabric allows to get through - so consider this when buying clothing that promises sun protection. Ultraviolet B, or UVB, are the rays from the sun we associate with getting a sunburn, and they usually have a shorter wavelength. Ultraviolet A, or UVA, is radiation from the sun that has particularly long wavelengths and is associated with aging skin. What is the difference between UVA and UVB? We also spoke with board-certified dermatologist Lian Mack, MD, who mentioned that we should also be protecting our skin from the blue light put out by our computer and phone screens, which can cause skin discoloration. In fact, according to Beth Goldstein, MD, adjunct professor in the Department of Dermatology at the University of North Carolina at Chapel Hill and founder of Modern Ritual, year-round sun protection can reduce your skin cancer risk by 40 percent. We’re tackling why applying sunscreen daily is every bit as important as brushing your teeth. You know that SPF is important, but what about all those other three-letter acronyms? UVA, UVB, UPF are all used when talking about protecting your skin from the sun, but what do they all really mean, and how do you protect yourself properly with sunscreen?
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