Using sunscreen most effectively

We all know we need to protect our skin from the sun, but just slapping on sunscreen is not sufficient. You need to choose the correct product, use it regularly, and in the right quantities.

The Canadian Dermatology Association (CDA) states that sunscreens are an effective and safe means of protecting yourself against the harm that the sun’s rays can do to your skin. The CDA set standards for sunscreen products, ensuring they meet the criteria to provide proper protection; look for the CDA seal of approval on your product.

Product quality isn’t the only thing which determines how much protection you get from the sun. How you use it is also highly important. Below are a few tips to make sure you’re using your sunscreen in the most effective way.

Choose the correct product

Select a sunscreen that offers protection from both UVA and UVB rays. Not every product offers sufficient protection from both, particularly UVA. If you see the CDA seal of approval on your product, you’ll know that it can filter UVA. Check out the list of CDA-approved sunscreens.

The sun protection factor (SPF) of a product represents its level of protection from UVB. The more susceptible you are to skin burning, the higher SPF you need. CDA recommendations are that every Canadian should use a broad-spectrum sunscreen with a minimum SPF of 30 from six months onwards.

Use it regularly

Sunscreen should be applied around 30 minutes before going into the sun so that the active ingredients can penetrate the skin. Put on a new layer every two hours, or more frequently if you’ve been swimming or sweating heavily.

Use enough

Whatever type of sunscreen you’re using – spray, cream or lotion – make sure you put a generous quantity on every part of your body that will be exposed to the sun; this includes all-around your neck, on your nose and your ears.

As a rule of thumb, an average-sized adult wearing a swimsuit will need around 30 mL of sunscreen (if it is cream) for adequate protection for their whole body. This is the equivalent of around two tablespoons.

• Try to stay out of the sun from 11 AM to 4 PM, as this is when ultraviolet rays are strongest. It is especially important for children to do this.
• Use shade when possible, e.g., sit beneath a tree or a parasol.
• Wear a hat when you’re out in the sun, and clothes to cover your arms and legs when possible. The most effective protection comes from tightknit clothing.