An optimal training schedule and appropriate nutrition are the basis for good muscle building. Muscle-Care was specifically formulated to support muscle development and function of the muscular system. Thus, Muscle-Care contains high-quality protein sources that serve as building blocks for the development of muscle mass. Among others, whey protein is part of the formula: a high-quality protein source naturally found in milk, with the most abundant amino acid being the branched-chain amino acid leucine. In addition, the individual amino acids lysine and threonine were additionally added, the first and second limiting amino acid for horses, respectively.

Muscle-Care also contains several antioxidants. These reduce oxidative stress caused by free radicals produced during activity. In addition to supplementation with vitamine E, vitamin C and selenium, superoxide dismutase, astaxanthin and gamma oryzanol also join the group of antioxidants in the formula. Finally, l-carnitine and quite a few different B vitamins are also included in Muscle-Care to contribute in energy metabolism. For example, Muscle-Care contains l-carnitine tartrate, a form of carnitine that has been shown to be more bioavailable and faster absorbed than other forms of l-carnitine.