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Sun Protection - How do sunscreens work ?

Date Published: 25th February 2008
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Sun Protection

Summer and good times go hand in hand. Unfortunately not all things about summer and sunshine is good. Two out of every three people in Australia and around the world, will develop at least one skin cancer during their life. Exposure to ultraviolet radiation (UVR) is the main cause for the high rate. (the highest in the world) Exposure to the sun is also responsible for premature ageing and wrinkling of the skin.

There are 3 types of ultraviolet rays - UVA, UVB and UVC. UVA & UVB are the rays that cause the most damage to our skin. The UVC are rays that are absorbed by the atmosphere and are therefore not a problem during sun exposure.

How do sunscreens work?

Sunscreens work by absorbing part or most of the UVR by providing a chemical barrier to the skin. The sunscreen may reflect or scatter part or all of the UVR away from your skin by forming a physical blocker.


What do the SPF numbers mean?
SPF stands for Sun Protection Factor. This relates to the amount of time it takes for your skin to burn. People have different skin types and therefore the length of protection given by sunscreens will differ. E.g If your unprotected skin takes 10 minutes to burn, a SPF 15+ sunscreen will mean it will take 15 times as long or 150 minutes to burn. The higher the SPF, the higher the protection. (as long as it is applied correctly)

What does "Broad Spectrum" mean?

A "Broad Spectrum" labelled sunscreen offers protection from both the UVA and UVB rays. All Suneek Sunscreens are Broad Spectrum.

Sensitive Skin

People that have sensitive skin must wear sunscreen and, additionally, should wear long sleeve shirts, wide brim hats and avoid the peak sun hours of 10am to 3pm.


Sunscreen Application Guide

Your first application of sunscreen is the most important. Apply sunscreen evenly and liberally to exposed areas of the skin 20 minutes prior to sun exposure. This allows time for the sunscreen to adhere well. Re-apply regularly, particularly after prolonged swimming or excessive perspiration. It is recommended that re-application to children is performed more frequently. If irritation occurs, discontinue use. Avoid contact with eyes.Here's a tip - Wear under make-up, moisturiser or insect repellant.

Babies and Toddlers Protection

Children have particularly sensitive skin so sun exposure should be avoided. If sun exposure cannot be avoided ensure that they have sunscreen applied to any areas where any of the skin is not protected by shade or clothing.


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