Understanding SPF is a language unto it self!
Sunblock, Sunscreen, Sun care, Sun lotion, Waterproof, Water Resistant
I hope that the following information will help assist you with clarifications of the above terms.
Note that there are cases pending against major sun care players for using misleading terms and claims regarding sun protection.
The only way to stay 100% protected against harmful UV rays is to stay out of the sun.
We all know that Canadian winters can be grueling and we all seek the warmth of the sun during our short summer season.
These SPF tips will keep you better protected!
An SPF 2 enables the skin to be exposed to UVB twice as long as when a sunscreen is not used before the MED is attained. This means that an SPF 2 absorbs 50% of UV rays, allowing the other 50% to get through, so it takes twice as long for the skin to absorb the amount of UV needed to produce redness. An SPF 8 absorbs 87.5% of the rays, leaving 12.5% to reach the skin. If you multiply 12.5% by 8, you get 100%, so the skin requires eight times the amount of UV needed to produce redness when wearing an SPF 8. An SPF 15 absorbs 93.33%, allowing 6.67% UV to get through, and an SPF 30 absorbs 96.67%, allowing 3.33% to pass. If you follow the diminishing numbers, you’ll see that even the highest SPF will not absorb 100% of UV rays. This is why the FDA no longer allows the use of the term “sun block” to describe sunscreens.
Note that Water resistant does not mean waterproof and regardless of either term REAPPLY REAPPLY REAPPLY!!! Especially after swimming and activities that cause you to sweat!
Enjoy the Summer Season BUT STAY PROTECTED!
Mindy Biggar is co-owner of The Spa West 9th Street.