UV Facts: UVA vs UVB

by Lori Valesko
We all know the sun can damage our skin causing premature aging and even cancer but most of us don’t know how or why.
It can be hard to know what to look for when you need to protect your skin as it’s easy to get confused about which UV ray does what
It’s easier to know how to protect yourself if you know what you’re protecting yourself from.
The sun has 2 types of UV, (ultraviolet), rays:
1. UVA
2. UVB
UVA:
Long-wave solar rays of 320-400 nanometers, (billionths of a meter). You’re almost never safe from exposure to UVA rays as they can go through windows, light clothing and even your windshield, so if you’re outside you’re getting exposed to UVA rays.
UVA rays are responsible for aging. They are less likely t View the rest of this article