The shine if off the...

Glitter.

No Shimmer: Why Scientists Want to Ban Glitter

Glitter should be banned, researcher Trisia Farrelly, a senior lecturer in environment and planning at Massey University in New Zealand, told CBS. The reason? Glitter is made of microplastic, a piece of plastic less than 0.19 inches (5 millimeters) in length. Specifically, glitter is made up of bits of a polymer called polyethylene terephthalate (PET), which goes by the trade name Mylar. And though it comes in all sizes, glitter is typically just a millimeter or so across, Live Science previously reported.

Microplastics make up a major proportion of ocean pollution. A 2014 study in the open-access journal PLOS ONE estimated that there are about 5.25 trillion pieces of plastic weighing a total of 268,940 tons (243,978 metric tons) floating in the world's seas. Microplastics made up 92.4 percent of the total count

https://www.livescience.com/61060-global-glitter-ban.html