We all know the traditional sunscreen rules: wait 15 minutes before sun exposure, reapply after 2 hours, hit your hands/neck/ears/webs of fingers and toes, blah, blah, blah. The word “should” in the question of the amount of sunscreen He should One uses the complex stuff, according to Christina Lee Chung, a board-certified dermatologist at Schweiger Dermatology Group in Philadelphia. “Technically, to achieve the sun protection factor (SPF) listed in the product, you need to apply 2 mg per 1 cm of your body, which is a lot of sunscreen,” she explains. “Realistically, a good coating should be applied to exposed areas daily, with reapplication every two hours to ensure maximum sun protection.” You may have heard of the “two-finger method,” where you measure two fingers of sunscreen lotion onto your index and middle fingers and apply to your face.
