Glows in the DARK by Creating its Own Light. Glowsand is a dry version of iGlow self glowing hairgel. The sand will glow for 3 hours in total darkness completely by itself. excellent cost effective alternative to digital fx for horror, science fiction , music video specia fx. apply to sets, props foir a great visual effect that ius unique and quite stunning to look at. See the video to watch how the process is activated in total darkness to the finished state of glowing, vibrant luminous color.. Safe, temporary, washes off. Fun for that extra special touch at venues, product launches, advertising. Versatile. See iGLOW, Self Glowing Hairgel The sister product of Glowsand at www. metacafe.com/watch/530090/