When selling sunglasses you will be asked alot CTS Wholesale Sunglasses what is the definition of UVA and UVB. All of blocks 100% UVA and UVB rays. Below you can see the exact meaning of both these terms, its very important and a great selling point!

UVA: UVA is ultraviolet radiation with wavelengths from 320-400 nanometers. It passes through the Earth’s ozone layer and can cause early aging of the skin.

UVB: UVB is ultraviolet radiation with wavelengths of 280-320 nanometers. The ozone layer absorbs most of the sun’s UVB, but even a small amount can do substantial damage. UVB causes skin cancer and may contribute to cataracts.