The vegan source of glucosamine in this formula is Aspergillus niger. Ingredients:INGREDIENTS: one vegetarian capsule provides: Glucosamine HCL (vegan) 700mg MSM (methyl sulphonyl methane) 125mg In a base of alfalfa, spirulina & bilberry. Directions:As a food supplement, take one to three capsules daily with food, or as directed by your healthcare practitioner.