BIOTIN 100 POWDER by ANIMED options 2.5 LB - $7.49 5 LB - $12.99 2.5 LB 5 LB Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Please call the store at (434) 392-4192 to place your order. Promote hoof health with Animed Biotin 100 Powder. A water-soluble B-vitamin, biotin plays an important role in carbohydrate, fat and protein metabolism and aids in normal hoof hardness and growth.