The only environmental factor identified as helping to cause skin wrinkling is cigarette smoking. However, the effects of aging on skin, including deep wrinkles, cannot be completely reversed. RA is essential for normal skin development, protection, and repair throughout life. In recent years synthetic forms of RA have been developed for application to damaged skin. The first purpose of these products was to treat acne.
Skin cancer is the most common form of human cancer.
The first rule, as you might guess, is to avoid exposure to sunlight as much as possible. That doesn't mean you can never go out in the daytime. But it does mean you should avoid spending hours at a time in the sun, especially if you don't use a sunblock cream, lotion, or ointment. Not smoking is another way to at least slow down the effects of aging on skin. Finally, research is beginning to show that application of RA to skin before exposure to sunlight may have a protective effect.