Specially formulated for senior dogs but may be used in dogs over 1 year of age, or when the most support is needed. Glucosamine, MSM, Collagen, Chondroitin, and Green Lipped Mussel help support connective tissue, cartilage health, joint movement, and lubrication of joints. Boswellia and Yucca help to alleviate aches and discomfort associated with daily exercise. Antioxidants help to protect against free radicals that can cause cellular damage.