Farnam Home and Garden 3001372 MSM Ultra Pure Powder Pet Joint supplement, 1-Pound 1 Lb., Msm Ultra Pure Powder, Recommended To Help Maintain Joint Health and Flexibility Contains 99.8-percent Ultra Pure Methylsulfonylmethane Contains No Fillers Or Additives Msm Boosts Collagen Formation For Healthier Horse Joints Msm Has Been Promoted As Having Anti-inflammatory and Pain Reducing Properties