“Sun exposure can cause tattoos to fade over time because the UV rays penetrate the skin and break down the pigments used in tattoos,” she says. Cake, a Brooklyn-based tattoo artist and co ...

represents how well a sunscreen protects against damage from the sun’s ultraviolet B (UVB) rays, which are responsible for sunburn and contribute to skin cancer. SPF—or sun protection factor ...

This is quite different from a sunburn, which occurs when UV rays damage the outer layer of the skin. “Sunburns can happen to anyone after prolonged exposure, whereas sun allergies often appear ...

In this article, we’ll take a closer look at the key differences between UVA and UVB rays, how they affect your skin, and what you can do to limit sun damage. UV radiation is a form of ...