Nupro Joint & Immunity Support has all the advantages of Nupro, plus a glucosamine complex for dogs that need extra joint support. This natural supplement is full of all the vitamins, minerals, amino acids, enzymes and essential fatty acids to support your dog's good health and their joints too. Nupro Joint & Immunity Support maintains the health and resiliency of connective tissue, restores damaged cartilage tissue, and promotes synovial fluid and joint lubrication. It also reduces inflammation and promotes collagen formation. Made with real liver. No artificial sugars or preservatives. Made for use in all adult and senior dogs.