# MEAN?
WHAT DOES THE SPF
The SPF # is an indicator of how much
longer it takes for skin to burn WITH
sunscreen compared to WITHOUT
sunscreen. For example, SPF30 provides
30x more protection than wearing NO
sunscreen. However higher doesn't
always mean better! Studies have found
that anything over SPF50 does not
significantly improve protection (e.g.
SPF30 blocks about 97% of UVB rays
while SPF50 blocks about 98%).
WHAT ABOUT WATER RESISTANCE?
In the summer, most of the time we’re
exposed to the sun we are also exposed
to water from swimming or sweating. So
choosing a water-resistant formula is a
good idea. Most water-resistant
sunscreens come in 2 levels, effective for
up to 40 or 80 min in the water.
Remember to err on the side of caution
when re-applying; depending on
circumstances the product can wash off
sooner, so it is recommended to go with
the shorter time frame for reapplication.
HOW MUCH SUNSCREEN SHOULD I APPLY?
Turns out most of us simply don’t use enough to get the
advertised protection. At least one ounce (a shot glass full) is
the recommended amount to cover an “average” adult body,
and depending on height/size some of us will need more. For
the face and neck the equivalent of ½ a teaspoon or the size
of a nickel is recommended.
Photo Credit Amy Min
Photo Credit Amy Min
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