Blacklight tattoos are created using white tattoo ink or a special kind of ink that only becomes visible under black light. This type of tattoo ink has been used in celebrity tattoos and is currently more costly than regular tattoo ink.
Tattoo art done with white ink or UV ink can be more painful, though, than those done with regular tattoo ink since thicker and more high-quality ink has to be used. Interestingly, though, no male celebrity was reported as getting or sporting a white ink tattoo.