Essence of Life biodegradable floss is made of cruelty-free mulberry silk and coated with vegan Candelilla wax and essential oils of mint. Not only is this floss 100% biodegradable and breaks down in approximately 60-90 days, its plastic free packaging ensures that less plastic is ending up in landfills and oceans. Stronger than corn, tears less readily, better for tighter set teeth.