We’re sure you’ve heard about the importance of sunscreen, but how does it all relate to ultra violets and SPF? And what do you really need to know about protecting your skin from the sun? We turned to our Senior Technology Chemist, Clara Le Berre at Formulation Technology in R&D to give us the facts so that we can all stay sun smart this season!
WHAT’S THE DEAL WITH UVA AND UVB?
The sunlight that reaches us is made up of two harmful rays; short wave ultraviolet B (UVB) and long wave ultraviolet A (UVA). The UVB rays are mainly responsible for the sunburn and reddening while the UVA rays, which penetrates deeper into the skin, play a major part in the skin ageing. Therefore you need protection from both! Following European recommendation all sun care products have UVA and UVB protection. UVB rays have a different intensity depending on season, location and time of day. The peaking hours are usually between 10am to 4pm, but the sun reaches you even when you’re in the shade. UVA rays are present during all daylight hours and throughout the year and can also penetrate clouds and glass. Up to 90% of visible skin changes are the result of sun damage, so it is truly important to always wear sunscreen! Studies also show that adequate protection from UV radiation can lower the risk of skin cancer.