Formulated to contain all the major electrolyte minerals at levels to match those lost in sweat to ensure what is lost is quickly replaced. High in sodium to encourage drinking for faster rehydration. Includes natural betaine which acts as an osmolyte to help maintain muscle cell hydration and function in heavily sweating horses. Glucose and red-fruits flavouring create a tasty recipe for fussy eaters. Contains Acid-Buf - a rich source of Calcium and Magnesium from calcified marine algae.