PLA Biodegradable glitter is made from polylactic acid that can be broken down through a process called hydrolysis at high temperatures. Although manufacturers sometimes label this kind of glitter biodegradable, it will only break down and regenerate bio-materials under these industrial conditions and so won’t biodegrade in the natural environment.

It is important to look for products that demonstrate the finished product will biodegrade in the natural environment. The best way to ensure this is to buy products that have been independently certified by reputable third parties.