Reviewed by Julia A. Siegel, MD Glow-in-the-dark body art may sound like something out of sci-fi lore, but it's a major tattoo trend that's very much grounded in reality. That's right: Luminous ink ...

The risk of skin cancer increased by 137 percent for people with tattoos larger than the palm of the hand. Even more ...

Pushing ink into the skin by hand is an ancient practice ... or a beautiful gradient from the most solid black to a very light grey can be achieved. A traditional tattoo machine will also create ...