Do not expose your skin for more than 45 minutes per day. Melanocytes are epidermal cells which produce melanin. The eyes and their surrounding area are the most fragile part of the face. Avoid direct exposure of the eyes and face and always wear tinted UV sun glasses outdoors. They will age your skin prematurely.
Free radicals are reactive atoms that have one or more un-paired electrons.
Activation of free radicals is caused by sun exposure. Special care and protection will eliminate their actions. An intelligent diet rich in vitamins A, C, and E produce very positive results. The hands are often overlooked as is usually the face. They will exude the effect of exposure rapidly.