Does Bioglitter™ contain aluminium, and if so, how can it still be called biodegradable?
The reflective aluminum layer in Bioglitter™ SPARKLE and HOLO products has been optimised to be as incredibly thin, 2,500 times thinner than a human hair!
Aluminium is a metal and inorganic, and is therefore exempt from the biodegradability performance of Bioglitter™. Biodegradability tests evaluate how well organic materials (carbon containing compounds) biodegrade in a particular environment, within a particular time frame.
Aluminium is used because it’s one of the most reflective metals in existence, second only to silver which is substantially significantly more expensive and also a natural biocide. Using a biocide like silver in Bioglitter would prevent it from biodegrading.