Equine america so kalm solution the equine america so kalm solution is perfect for horses and ponies that are prone to nervousness and tension before exercising and competition featuring a combination of magnesium with l tryptophan that is associated with the production of serotonin that helps to calm and focus the solution can also be used in the first season with young horses that are highly strung and distracted that can result with issues with training concentration and focus solu