Own a glass hookah? Wanna hold Superman's weakness but in the form of Hookah? Buy AOT glow to enhance the smoking experience by having your water glow! Is AOT Glow safe? Yes it is 100% safe to use with your hookah, also should note for best results the liquid works under black light to enhance the waters color and really bring out that kryptonite green, AOT Glow is the way to go if you want a new experience thats not necessarily scary to try.