Purple Glow in the Dark & UV Reactive Pigment Powder - 30 Grams Purple glow in the dark powder pigment. Appear white or invisible in day light when mixed at a low ratio Multi-Purpose glow in the dark pigment charged by natural, artificial light or UV black lights Non-toxic and environment friendly. Not tested on animals and humans Can be mixed with acrylic powder, paint, glue, silicone, plasti dip, artists gels, resin epoxies etc. Popular for glow in the dark nails, art and print work or any application that will provide enough light for it to charge efficiently