Waterproofness
of sunscreens
The effectiveness of
sunscreens also depends on their correct use, it should be applied about
half an hour before starting the exposure to the sun and renewed every two hours.
It should also know if the
protector is waterproof or whether it will be necessary to re-apply after going
for a bath. The water resistance is indicated on the label, but in many
cases mentioned by these English words:
· Waterproof: indicates that maintains
its properties after 80 minutes in the water.
· Waterresistant mean that keeps
their property originating after 40 minutes in the water.
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