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Tanning occurs gradually through stimulation and oxidation of
melanin in the skin during exposure to ultraviolet rays. Too much
UVB causes sunburn (erythema).
Natural sunlight contains an uncontrollable amount of UVB (burning
rays); whereas indoor tanning controls both the UVA/UVB ratio and
your exposure time, giving you the perfect balance for developing a
deep, dark, healthy-looking tan. ETS INC. |
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