Melanoma

the following recommendations appear reasonable:

• Most important: the best protection is a natural suntan.
• DO try to develop a moderate natural suntan unless you have extremely sensitive skin and burn easily. Regular and moderate unprotected sun exposure in the early morning or late afternoon will help maintain a protective tan and keep your vitamin D stores at an optimum level.
• DO build up a tan slowly over, say, a week. Aim for no more than a slight pinkness each day. You should never tan so much that your skin peels off.
• DO remember that sunlight is strongly reflected from sand, snow, ice, and concrete and can increase your direct sunlight exposure by 10 to 50%.
• DO cut down on the polyunsaturated fat in your diet.
• DO see your doctor if you spot any unusual moles or growth on your skin -- particularly if they are irregular in shape, bleed, itch, or appear to be changing. Most skin cancers can be cured if caught in time.
• DO NOT use a sunscreen but DO use a moisturiser on your skin. Put it on at least fifteen minutes before going into the sun to allow it to penetrate the skin. It is a good idea to put this on all over your body before you dress to go out. That way you don't miss bits such as the 'bikini line'.
• DO NOT shower in the morning before going out to sunbathe. The oils naturally produced by your body during the night are a good protection.
• DO NOT shower for at least an hour after you have sunbathed. Vitamin D formed by the action of the sun on oils on the skin need time to be absorbed.
• Forget 'aftersun' products. They are expensive and unnecessary if you have followed this advice and not allowed your skin to be burnt. But after you have showered, do use a moisturiser.
• DO NOT wear sunglasses that filter out 100% of the ultraviolet light. They may protect you against the development of cataracts, but they stop UV entering the eyes – and that is much more important as UV through the eyes prevents cancer.