MSM is a bioavailable source of organic sulfur. Sulfur works in many pathways in the body and is important for proper gastrointestinal, respiratory, metabolic, bone and joint functions. Sulfur is also important in the production of connective tissue and cartilage. Solaray MSM is produced in the USA through a distillation process for maximum purity. Devil''s Claw, Turmeric, Boswelia and Cat''s Claw have also been added for additional support.