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UVA and UVB: The difference explained
UVB rays penetrate the top layer of skin; however, UVA rays go deeper into the dermis, causing premature skin ageing: wrinkles, brown spots and loss of skin firmness.
UVA Rays are the No.1 Cause of Premature Skin Ageing. They are able to pass through glass and clouds and are present all year long, rain or shine. So everyday the skin receives more UVA than UVB rays.
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