None: Spf lotions that let you "tan" are generally under spf 15. To obtain proper uva / uvb protection you should choose one over spf 30.
Answered 10/23/2017
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SPF: A broad spectrum spf 30 sunscreen reapplied every couple of hours or after water exposure is required . Tanning still occurs since not all the solar radiation is blocked. Keep in mind that tanning represents sun damage and chronic sun exposure causes wrinkles and skin cancer
Answered 7/7/2013
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