The Oralx Micro B-12 12x Oral Supplement for Horses can help support various needs. Vitamin B-12 plays a key role in cellular health and helps with everything from reproduction and hair growth to the proper functioning of the nervous system. Vitamin B-12 is one of the few vitamins that isn't naturally found in plants, so supplementation to standard feeding is often necessary. This equine B-12 supplement provides a boost to ensure proper nutrient levels are acquired. Two dosing options of this vitamin B-12 supplement are available. Choose from 5X and 12X options to help meet specific needs.