Glucosamine HCL is the foundation of natural care for joint issues. It replenishes the synovial fluids which surround the joints, and can also help repair cartilage. It is a pure powder supplement. It can work alone, but works best when other joint supplements are combined with it.
1/2 tsp daily equals 1600 - 2000 mgs, which is the daily dose for dog 50 lbs and over. There are no fillers or additions, this is pure glucosamine HCL.