It’s no secret that sunscreen is a critical step in protecting your skin from sun damage, but what if you aren’t going outside? We spoke with New York City-based dermatologists Patricia Wexler, MD and Marisa Garshick, MD on why wearing SPF every day, even if you are indoors, is necessary.
Ultraviolet A rays (UVA) have a longer wavelength that penetrates the skin and contributes to the risk of skin cancer, while ultraviolet B rays (UVB) damage the firmness and elasticity of the skin, according to the American Cancer Society.
“When you are indoors, you can still experience UV damage through the window; while most windows protect against UVB penetration, it is through that up to 75 percent of UVA rays can pass through window glass, contributing to skin aging and increasing your risk of skin cancer,” Dr. Garschick tells Yahoo Life.
While many are spending time indoors looking at computer, television and phone screens, Dr. Wexler notes that some SPF protects against blue light and photo damage so it’s important to apply daily, “rain or shine.”
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