(Brookside) An all-natural, herb-free calming formula guaranteed for your satisfaction. Counteracts the stress of competition and intense training that can produce irritability and nervous, unpredictable behavior. Allows the horse to be more focused. This product contains concentrated amounts of B vitamins (thiamine, 1,000 mg niacin, folic acid, B-2 and B-6) plus magnesium. Command Serene will not test. Feed one scoop twice daily. Pellets.