Is the BURST Floss Vegan? Megan B January 07, 2021 21:20 Updated Yes BURST uses Microcrystalline wax on the floss which is Vegan. Related articles Were any koalas or animals harmed in the making of the BURST floss? How is the BURST Floss different than other Floss? BURST Floss Manual Will the BURST floss interfere with my birth control? Is the BURST Charcoal toothpaste Gluten Free and Vegan?