Don’t Worry–Sunscreen Won’t Stop Vitamin D
Because sunscreen blocks UV rays, some people assume that it stops vitamin D, too. But studies do not agree. In 2019, research in the British Journal of Dermatology determined that people who wear sunscreen still get “excellent vitamin D synthesis.”
Why doesn’t sunscreen block vitamin D? Scientists aren’t entirely sure. Harvard Health Publishing theorizes that sunscreen does not block all UV rays, so some vitamins get through. Perhaps UV rays aren’t necessary for vitamin D. Studies show no difference in vitamin D levels between someone who wears sunscreen and someone who doesn’t.
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