To determine a sunscreen's SPF scientists measure the amount of UV rays it takes a test group to burn without sunscreen. Then they redo the test with sunscreen. The "with sunscreen" number is divided by the "without sunscreen" number, and the result is rounded down to the nearest five. This is the SPF.
For example, if you burn after 10 minutes of sun exposure, an SPF of 30 will allow you to be in the sun for up to 300 minutes without burning. This of course is assuming that you apply enough sunscreen to begin with which most people don't... an ice cream scoop amount is what you should be using for proper coverage!
If you burn after 10 minutes, these sunscreens will allow you 400-450 minutes of sun exposure:
Alyria Sunscreen Lotion - 75g - $57 - with physical sunscreens - zinc oxide and titanium dioxide and botanical extracts - buriti fruit oil - helps nourish, moisturize and repair, rosemary extract - an anti-inflamatory and Vitamin E - helps protect and repair skin at a cellular level - which combined protect skin from the multiple harmful effects of the sun. In a formula that contains tiny micronized particles that are easily absorbed and allow for transparency so that no thick, white layer is left on the skin.
Available exclusively at doctor's offices - check out www.alyria-med.com to find one near you.
Available from your Avon rep - 1-800-265-AVON or online at www.avon.ca.
Available exclusively at Shoppers Drug Mart.
If you missed Monday's post be sure to check out the lightweight sunscreen options!
- Lisamarie -
Love the focus on how it important it is to protect your skin! Also really like the range of options!
ReplyDelete-M