Most people do not use enough sunscreen. The key to getting the full amount of protection from sunscreen is to apply it generously and frequently.
About two tablespoons of sunscreen — or about enough to fit in a shot glass — is only enough for your face, your neck and the back of your hands. Reapply sunscreen at least every two hours, or more often if you’ve been sweating or swimming. A sunscreen may be water resistant, but no sunscreen is waterproof.
Children 6 months and older can use the same sunscreen as adults. Babies younger than 6 months should not wear sunscreen but should instead be kept out of direct sunlight and dressed in protective clothing.
Whatever kind you use, make sure it is