6 Reasons SPF Is Essential Year Round, According to Skin Care Experts

"Wearing a sunscreen with an SPF of 30 or higher daily is the most important part of any skin care regimen during any season," says Dr. Jeanette M. Black, a board-certified dermatologist at Skin Care and Laser Physicians of Beverly Hills. "The skin is constantly exposed to the sun's radiation all year long, even through the clouds. This constant radiation leads to uneven pigment, redness, wrinkles and skin cancers."

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