UVA vs UVB – What’s the Difference?

Ever wonder what the difference is between the two ultraviolet rays in a tanning bed? UVA and UVB rays are the two rays used to tan your skin. UVB rays are shorter in length than UVA rays and don’t penetrate as deep into the skin. Though they may be shorter, these rays are very strong and can cause damage to your eyes. Because of this, eye protection is important when tanning indoors and outdoors.

The UVA rays emitted from tanning lamps, as mentioned, are longer in length than UVB rays and penetrate deeper in to the skin. UVA rays stimulate the melanocyte cells to produce more melanin. Simply put, it helps produce the color that we all know as a sun tan. The more melanin that is produced by the melanocytes in our skin, the tanner we appear. These rays are artificially created by tanning bed bulbs. The lamps tend to emit larger amounts of UVA, from 93 to 99%, and only about 7 to 1% of UVB rays. The production of vitamin D is stimulated by exposure to both ultraviolet rays.

At Sun Suite tanning, our beds have both UVA and UVB rays. Our level five is a bronzing bed, containing 100% UVA rays, a favorite to tanners at our salon that want to maximize their color. Our tanning professionals recommend getting a good base tan from beds with UVA and UVB rays before jumping to level 5. With the level five bronzing bed, it takes color to make color.

From: http://www.livestrong.com/article/43123-uva-vs.-uvb-tanning-beds/

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