Equine America Super So-Kalm Powder 1kgHorses are fright and flight animals, and can be prone to excitability and nervousness in unfamiliar surroundings (such as a new competition or training venue), which can cause them to lose concentration and focus. Super So Kalm powder provides three key micronutrients to help the horse to maintain a calm outlook and concentrate on his work. Magnesium plays many important roles in the body, including muscle function, and is a key co factor in enzymes