To ensure that there are enough layers on sunscreen on the skin, Neil Niren MD from his dermatology practice suggests that patients should fill the hollow of their palm with a broad-spectrum sunscreen and then apply it to the face, neck and ears. Some patients that ask Dr. Niren for advice wonder if it is advisable to apply two coats just to make sure that everything is covered.
Educause Neil Niren: http://www.educause.edu/members/neilniren
