Vita Flex Pro Vision Focusing & Horse Calming Supplement helps keep horses composed and focused in stressful situations. It is an excellent way to help horses maintain calmness in heavy training, competition and trailering. It does not cause drowsiness or affect performance. Please check with your association for testing rules and regulations. Vision contains a unique combination of seven active ingredients in a mini-pellet formula. The alfalfa based formula includes L-Tryptophan, Thiamine, Inositol, Riboflavin, Magnesium, Vitamin B6 and Valerian root extract in an alfalfa base. The recommended dose is 1 ounce. This product should not be used for pregnant or nursing mares.