The ideal sunscreen to use is an SPF15. This means a sunscreen which gives you fifteen times
more protection that you would have normally. An SPF15 sunscreen will absorb proportionally equal
amounts of UVA and UVB, and will give you good protection if you are sensible about your exposures.
Sunscreens higher than SPF15 tend to lose their balanced effect: the chemical in an SPF30, for example,
will not block UVA rays as effectively as UVB. The other danger with high SPFs is that people will stay
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