The McIntosh Family has been involved with horses of all breeds for generations. In the mid 1950s Jack McIntosh became involved in livestock feeds and supplements. McIntosh Pro Line evolved from decades of experience. We are proud of the products we sell. Proud enough to put our name on the brand.
McIntosh Pro Line • MSM is a nutritional supplement that provides biologically-active sulfur; a key component of connective tissue in animals and humans. McIntosh Pro Line MSM has been used for years to treat horses for a variety of joint and muscle afflictions, without the side effects of drugs. Recent studies have shown it can provide relief for joint and muscle pain as well as improve hoof & hair health.