· Glucosamine - naturally occurring crustacean extract, up to 1500 mg of glucosamine sulphate per sachet. Collagen, glucosamine and calcium complex with vitamin C. Ingredients: hydrolysed collagen type I and III, glucosamine sulphate (marine, derived from crustaceans), calcium salts of citric acid (calcium citrate), dried bald malpighi extract (Malpighia glabra L.), natural flavoring.