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What is the difference between UVA and UVB sunrays?

April 26, 2017difference sunrays UVa UVB

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What is the difference between UVA and UVB sunrays?

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UVA light penetrates deeply into the skin and is most responsible for long-term skin damage. Some researchers think UVA may be the main culprit for some of the worse types of skin cancer as well. UVB light does not penetrate deeply and is most responsible for tanning and burning.