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So you want to get a beautiful suntan?
The skin layers absorb ultraviolet light, and our skin produces melanin as a natural and automatic response to UV stimulus. In years past, it was taught that UVA tanned us, and UVB burned us. In reality, both UVA and UVB cause tanning and burning—the important factor is that UVA is about a thousand fold less effective than UVB at inducing skin changes, including redness and pigmentation. UVB may be more dangerous because it was about a thousand fold greater ability to burn than UVA. THE TANNING PROCESS IN GREATER DETAIL: |
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