So you slather on some ‘screen before heading out and promptly forget about sun protection for the rest of the day? Best not bring that up around dermatologist Kiran Lohia. If you’ve been hiding behind the safety net of SPF 15, she’s got news for you: Sun protective factor does not determine how strong the sunscreen is, but how long it keeps you safe. That doesn’t mean SPF 100 will have you covered for the day. Sweat and normal wear means you will have to reapply every 3 hours, whatever the number on the tube.
As the brutal summer approaches, we got Dr. Lohia to part with her best skincare tips:
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