Tekpet Hip and Joint Daily Formula 120 Chewable Tablets &mdash; 40% More MSM Than Other Brands Methylsulfonylmethane (MSM) 500 mg. MSM: Naturally occurs in dog tissue and suppors healing of damaged tissue and reduced inflammation. Glucosamine HCL 500 mg. Glucosamine: Supports repair of joint muscle and cartilage Chondroitin Sulfate 100 mg. Chondroitin helps retain flexibility and strengthens cartilage to prevent future damage.