NAF Five Star Magic Horse Calming Supplement is a magnesium formula that contains a unique combination of calming herbs and nutrients known to help relax muscle tissue and support concentration.There are no tricks behind Magic, just sound scientific nutritional and veterinary knowledge, combined with the highest grade ingredients.Magnesium is an essential nutrient to a horses wellbeing, and among its many roles is the regulation of nervous tension. As magnesium also acts on muscle tension, a horse low in magnesium may appear 'tight in his way of going and express excitability or a lack of confidence. Low magnesium may be caused by a grazing deficiency or simply a horse or ponys individual metabolism. Magnesium levels can also be reduced by regular travel and competition. The unique blend of magnesium and herbal support of Magic enables the horse to tackle all that is asked of it, calmly and confidently. Key Features & Benefits Magnesium Calmer Combination of Calming Herbs Help