) Command Serene is 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. Command Serene Powder contains concentrated amounts of vitamins B1, B2 and B6, plus niacin, folic acid and magnesium. Contains no sugar or herbs. Command Serene will not test. Feed 1 scoop (10 grams) twice per day with feed. Scoop enclosed. Powder.