Dermatology and Skin Care Updates from Waterhoody

Does Using an SPF Greater than 30 Make a Difference?

Does Using an SPF Greater than 30 Make a Difference?
The answer to this question depends on how much sunscreen you apply. In order to achieve the SPF on the bottle, you have to apply about a shot glass full of sunscreen to your body with each application.  Most of us only apply about 1/4 to 1/2 of the recommended amount of sunscreen, so we do not achieve our goal of an SPF of 30
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