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Tanning is a natural process whether you tan in a salon or in the sun. The tanning lamps in a professional salon use a carefully researched combination of ultraviolet light. Different spectrums of UV light work together with your skin to form a protective barrier against skin damage. There are three types of UV: UVA, UVB and UVC. UVB rays are short intense waves of energy stimulating melanocytes in your skin to produce the pigment we call melanin. UVA-is a longer wave that pe*****tes the skin more deeply than UVB, the pinkish melanin in your skin absorbs the UVA light which turns the melanin brown. UVC is the harmful type of UV, tanning beds are designed to filter out this ray. Moderate exposure to UVB helps develop a natural barrier in the skin to protect the body from excessive UV light. UVB stimulates the production of melanin which then surrounds the core of cells to protect DNA. In addition UVB thickens the epidermis (the top layer of the skin) there by limiting the amount of UV light which could pe*****te to lower skin layers. If this protection (base tan) is not developed or a sunscreen used sunburn can occur and the DNA of the skin cells may become damaged. Repeated sunburn can result in damaged cells which then reproduce themselves. This can be the beginning of skin cancer. There are also many links to Vitamin D exposure in tanning beds and health. Ask your physician for more details.