Light Up The Night While LED effects and strobe lights have their place, there is just something about the eminence of phosphorescent light that delivers a powerful visual message. Especially in science scenes and special effects like you often see in haunted houses. So why not take bask in the versatility of a Concentrated UV Glow Dye like this. A UV Glow Dye That’s Easy To Use One of the great things about this Concentrated UV Glow Dye is how easy it is to use. You simply need to Add to water and most water-soluble liquids or gels to create an intense green glow. Glow is so powerful it is noticeable in broad daylight, and under a blacklight it really lights up. Non-toxic, not for internal use. 1 single drop is enough to illuminate half a liter of fluid, with more drops creating an even more intense glow. You can then add it to just about any glassware you can imagine to create a freaky scene is a radioactive glow.