The present invention relates to a chemical composition consisting of asolution of water and/or a lipidas a solvant, with a myostatin inhibitor as the solute. The purpose of thischemical composition is toinhibit Myostatin (GDF-8) activity by injecting said chemical composition.Myostatin is a hormone thatlimits muscle growth； myostatin inhibitors can be used for muscle enhancement(including inducinghypertrophy and/or hyperplasia) as well as improving muscle function(including decreasing atrophyand/or increasing endurance, force and/or strength). This chemical compositionhas applications in thetreatment of musculoskeletal and neurodegenerative disorders among others,performance enhancementamong athletes, as well as enhancing muscle in livestock.
