This micro fine glitter (particle size 0.004 x 0.004) is a cosmetic-grade, polyester glitter. It is approved for use on nails, lips, lotions, soaps and because it is so very thin and fine, it is also approved for use around the eyes!

The technical name for the polyester glitter is 'Polyethylene Terephthalate' (the same thing that PET plastic bottles are made from).