Yes, Yoni tampons are biodegradable. You can throw them on the compost heap because they are made from 100% organic cotton. Unfortunately, the individual packaging of the tampon (the plastic wrapper) is not biodegradable. We tried bioplastic but it isn’t strong enough yet to hold the tampon together or it made it impossible to open. This is something we are working on and hope to change in the future. And of course don’t forget to throw the outer carton packaging in the paper bin.