Cosmetic Bio-Glitters can be widely used in most cosmetic products. They are made on a cellulose base which is completely biodegradable and as such have huge environmental advantage over standard cosmetic grade poly-glitters. Currently this cellulose base cannot tolerate solvent environments so they are not suitable for nail polishes, but they are perfectly fine for most other cosmetic applications as well as wider glitter applications. Microfine Glitters (150 microns or .006 Hex and under) are approved for use in eye make-up. Also approved for many lip products in the EU, although advise testing to ensure suitability.
Glitters may either want to float or sink out of suspension in certain products so a 'suspension' base may be required for certain types of products when adding glitters.