Glominex Glow in the Dark Pigment 1 oz - Invisible Day Purple - AD257 Glowminex Purple Invisible Day Glow Pigment is formulated to bring you maximum brightness! It is non-toxic and non-radioactive and can be repeated indefinitely The pigment is invisible during the day and will glow neon purple at night This pigment is perfect for making glow in the dark paints, glow wall murals and pictures, glow candles, and so much more Each pack contains 1 ounce of purple glow pigment For safety, do not use on your skin/hair.