Micro-B12 12X Vitamin B=12 Oral Gel for Horses This contains 12,000 mcg. of Vitamin B-12 in a gel form. Vitamin B-12 is essential for the following normal functions in animals; growth, health, feed efficiency, reproduction, formation of red blood cells, nervous system functions and healthy hair coat. It aids in carbohydrate and fat metabolism. Directions: Administer entire contents onto the back of the horse's tongue. Guaranteed Analysis: 12,000 mg Pure USP Vitamin B12 ORX09 76110700581