Powerful sunscreens may not always be enough to prevent malignant melanoma, a deadly form of skin cancer, from developing under the Sun's powerful rays, research has found.
Mice wearing Factor 50 sunscreen were exposed to a weekly dose of UV radiation - similar to that a person would be exposed to if they spent an hour a week in a garden in southern England.
Scientists at Manchester University and London's Institute of Cancer Research found tumours still developed but at a 30% slower rate than the skin cancer that developed in mice who were not wearing protection.
Their paper, published in the journal Nature, revealed that even highest grade SPF 50 suncream allows sufficient UV radiation through to damage the DNA in the skins pigment cells.
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