What is the difference between UVA, UVB, and UVC?
Answer:
UV-A= Aging. This UV radiation can penetrate and damage the cell. About 98% of the UV radiation reaching Earth’s surface is UV-A.
UV-B= Burning. This UV radiation is mainly what causes sunburns. Most of the radiation is absorbed in by the ozone layer in Earth’s atmosphere. Only about 2% of the UV radiation reaching Earth’s surface is UV-B.
UV-C= Collected. This UV radiation is almost 100% collected (absorbed by the ozone layer in Earth’s atmosphere.
When selecting sunscreen, make sure you get one that has both UV-A and UV-B protection.
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