Celebrity manicurists explain the difference between various devices, and share their top tips for choosing a reliable one ...

In some people that are photosensitive, UV light from sunlight and indoor light sources can trigger a lupus flare. In addition to sunlight, ultraviolet rays are also given off by several different ...

From its nutritional properties to regulating body temperature, UVB light is vital for many types of cold-blooded creatures. But when it comes to picking a T5 fluorescent or standard globe ...