Ultraviolet Rays, UVA vs. UVB
As many of us are now experiencing the winter weather (albeit global warming winter), it is still important to wear sunscreen each day. Why you ask? Well here is a brief synopsis of the difference between UVA and UVB rays, and how they are present year-round!
Ultra-Violet A Radiation (UVA)
UVA rays emitted by the sun are the deepest penetrating UV radiation. UVA rays cause wrinkles and premature aging in the skin. Additionally, the effects of UVA rays are cumulative, and may contribute to DNA damage as well as skin cancer. UVA light can penetrate windows and, due to its longer wavelength, filters deeper into the skin than UVB light. Most sunscreens contain an SPF to protect against UVB rays. Subsequently, it is important to …








