Robert Herschler Patented MSM
) Horsemen have used MSM extensively for the Horsemen have used MSM extensively for the past several years as a supplemental source of bio-available sulfur. Horses utilize nutritional sulfur in the production of connective tissue, enzymes, hormones and immunoglobins. 9,416 mg MSM per serving. Feeding levels: add 1/3 ounce twice daily for the first 5-7 days, reduce to 1/3 ounce daily as a maintenance level.