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Sunscreen 101 – quick tips on using sunscreen products
Use an SPF of 30 or higher
Sunscreens are rated by the strength of their SPF. SPF stands for sun protection factor. A sunscreen’s SPF tells you its ability to screen or block out the sun’s UVB rays. SPF 15 sunscreen blocks 93% of UVB rays. Sunscreen with SPF 30 blocks 97% of UVB rays.
Look for broad spectrum and water-resistant on the label
Broad spectrum offers both UVA and UVB protection. Water-resistant means that the product stays on better in water.
Apply a generous amount
Spread evenly. The average adult needs about 2 or 3 tablespoons of sunscreen to cover their body and a teaspoon to cover their face and neck. This is about the size of a golf ball to cover your body every time.
Use sunscreen on any skin that clothing doesn’t cover
Put sunscreen on your ears, chin and neck even when you’re wearing a hat. Don’t forget your nose, any bald spots, the backs of your hands and the tops of your feet. Check to see how clothing moves when you move – and put sunscreen on the skin that gets exposed.
Put sunscreen on first, before any makeup or insect repellent
Sunscreen should always be your first layer of protection.
Don’t spray aerosol or pump sunscreen products directly onto your face
Spray the product on your hands and then rub it carefully over your face, avoiding your eyes and mouth.
If you forget to put it on before going outside, it’s not too late
Put it on as soon as you can and reapply often.
Reapply sunscreen at least every 2 hours
A higher SPF doesn’t mean that you can wait before reapplying. Reapply sunscreen throughout the day, especially after swimming, sweating or toweling off – water-resistant sunscreen only works for 40 or 80 minutes, depending on the label. And remember – sunscreens are designed to help protect you when you have to be outside. You still need to protect yourself in other ways too!
Use a lip balm with SPF and reapply when needed
Your lips need to be protected too. Be sure to put more on after eating or drinking.
Apply sunscreen on cloudy days and during the winter months
Whatever the weather or season, UV rays are always there! Even if you can’t see the sun, UV rays can pass through the clouds. And in the winter, the sun’s rays reflect off the bright surface of the snow.
Try different sunscreens until you find the one you like
Talk to your pharmacist if you need help choosing a sunscreen. Choose one that feels good to you and that you find easy to apply thoroughly.
Take care with products that combine sunscreen with make-up or moisturizer
Always check that the sunscreen is broad spectrum and follow the directions for how much to apply and how often. If you’re not sure that the makeup or moisturizer protects you from both UVA and UVB rays or the packaging doesn’t include directions, you may want to use a broad-spectrum sunscreen along with it.
Check the expiry date
Sunscreens contain chemicals, and they should not be used after the expiry date because they may not work as well. Sunscreens can be affected by extreme changes in temperature. If it has been frozen or overheated or has changed colour or smell, it’s best to throw it out.
The Canadian Cancer Society supports the use of broad spectrum sunscreens along with shade, clothing and hats, but does not endorse specific products.