Our vegan capsules are made from pullulan, which is a plant-based polysaccharide derived from the Aureobasidium pullulans fungi. Pullulan is biodegradable and made without any other additives or fillers. Compared to animal-based capsules, pullulan resists oxygen very effectively, which means the the powder inside is kept fresher for longer - so you can enjoy all the benefits inside the capsule!