TSF 100 Powder TSF 100™ Powder is a comprehensive formula designed to support normal thyroid function in horses by delivering high levels of the amino acid L-tyrosine. It also includes a targeted blend of essential minerals and nutrients like magnesium, copper, zinc, manganese, iodine (from kelp), and niacin to promote overall metabolic and endocrine health. This supplement is ideal for horses requiring thyroid support or assistance with normal sweating function. Features: Provides high levels of the amino acid L-tyrosine Supports thyroid function and healthy metabolism Formulated to promote normal sweating Contains essential minerals including magnesium, copper, and iodine Directions: Under 500 lbs: 0.5 scoop daily 500–1000 lbs: 1 scoop daily 1000–1500 lbs: 1 scoop daily Over 1500 lbs: 1.5 scoops daily Feeding Directions: Feed at a rate of 30 g daily. 1 scoop = approximately 30 g. Ingredients: Kelp, Magnesium Oxide, L-Tyrosine, Niacin, Manganese Polysaccharide Complex, Zinc Polysaccharide Complex, Glandular Meal (porcine), Copper Polysaccharide Complex, Ascorbic Acid, Natural & Artificial Flavor, Cobalt Carbonate. Guaranteed Analysis (per serving): L-Tyrosine: 4,200 mg Magnesium: 3,200 mg Copper: 54 mg Zinc: 108 mg Manganese: 108 mg Iodine (from Kelp): 9.5 mg Niacin: 1,050 mg