Blacklight reactive tattoo ink is a special ink you use for a tattoo that you can see under the blacklight. These tattoos literally glow in the dark. If you like to impress on the dance floor, then ask your tattoo artist to use this special reactive ink for your favourite tattoo design. The good thing about using this reactive tattoo ink is that your tattoo is quite invisible during the day, but in the night, you will see the stunning tattoos in the dark.