Potential Side Effects of Glow-in-the-Dark Tattoos Phosphorus-based ... the quicker it will fade and the more dull it will be under black light." Because the pigments are much brighter, you ...

This effect is due to quinine ... and Rockstar -- emits a yellow glow when under black lights. Milk glows white due to the tryptophan, an auto-fluorescent protein that absorbs and re-emits ...