Dermatologist Explains Why Wearing Sunscreen During Winter—And Even Indoors—Is Crucial To Prevent Premature Aging: 'UV Rays Penetrate Through The Clouds'

by Mariam Qayum

“UV rays are still very much present in the winter months and their effects can even be intensified due to thinner ozone levels, compromised skin barriers and snow or ice reflection,” Dr. Casey explains.

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