15-35 mg per day, about 1/4 heaping teaspoon per day, or at the advice of your veterinarian.
Biotin is a B vitamin, which is frequently supplemented to support healthy hooves and coat.
Since the daily recommended amounts of biotin is so small, we use 1% biotin, for ease in measuring.
1/2 teaspoon = 3.2 grams, giving 32 mg biotin
1/4 teaspoon = 1.6 grams, giving 16 mg biotin
Disclaimer: This product is not intended to diagnose, treat, cure, nor prevent any disease. If your horse experiences any adverse effects from using this supplement, discontinue use and contact your veterinarian. For use in animals only.