How Does UV-Radiation Damage Skin
UV-A effects tanning of the skin through the production of melanin; it can also cause photosensitivity and light-dermatitis, premature aging of the skin. Constant exposure may cause ceratitis and cancers. UV-A penetrates the skin deeper than B+C but does not have as much energy. UV-B causes sunburns and the possibility of skin cancer. UV-C as the radiation with the highest energy level is extremely dangerous because it destroys skin cells and causes cancerous growths.