Keep this in mind to avoid the unpleasant surprise of redness and sunburn after a day outdoors. Bodily areas of increased sensitivity are, the tops of your feet, behind your knees, and the ears. Apply sunscreen before going outdoors. It will prevent sunburn before you arrive at your destination. 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.