There are 2 forms of damaging ultraviolet wavelengths of light transmitted by the sun. Ultraviolet-B rays ([UVB] the burning rays) are relatively short. These tend to cause more superficial epidermal burns and sun damage. UVB exposure contributes to the formation of blotchy skin discoloration.
Then there are the ultraviolet-A (UVA) rays. These rays are much longer and can penetrate down into the dermis. These rays can cause damage to cellular deoxyribonucleic acid (DNA), collagen and elastin fibers (think wrinkles!), dermal blood vessels and other deeply situated structures.
While the early forms of tanning bed lights used UVB bulbs, the concern that customers would get burned by these short wavelengths caused the manufacturers to switch to the UVA bulbs; more damaging but far more subtle. So while it's true you may be less vulnerable to receiving a bad burn in the booth, your skin receives far worse ultraviolet (UV) damage. And it has been proven that at least 5% of the rays given off by UVA bulbs are in fact UVB anyway.
Have you ever seen a poster in a tanning salon that showed a pale perky 18-year-old girl on one side (before) and a weathered wrinkled 65-year-old woman on the other? Of course not, but that's exactly how a sun worshipper's appearance can age. And let's not forget another scenario ... a lengthy scar from the excision of a skin cancer. Before you're seduced by the sunkissed goddess looking at you from that sales brochure, think ahead to what other "after" consequences you may have to look forward to.
There are 2 forms of damaging ultraviolet wavelengths of light
transmitted by the sun. Ultraviolet-B rays ([UVB] the burning rays)
are relatively short. These tend to cause more superficial
epidermal burns and sun damage. UVB exposure...
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