19th May 2012
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Ageing and the Sun
Exposure to ultraviolet light, from the sun, is a major factor in premature aging of the skin.
There are two main types types of ultraviolet radiation from the sun that you should be aware of in terms of skin ageing: UVA and UVB (based on their wavelengths).
The UVB rays are known to be the most damaging to the upper most layers of the skin and are the rays that cause sunburn. UVB rays have also been linked to skin cancer.
UVA rays have less energy but can penetrate deeper, to the dermal skins cells, damaging the collagen and elastin in the dermis leading to premature aging of the skin.