The Science Supplements Muscle Builder is a targeted equine muscle supplement delivering HMB (b-hydroxy b-methylbutyrate), leucine and L-lysine - three key ingredients used in controlled scientific studies to promote muscle growth and aid muscle repair. Available in 0.83kg (830gm). Delivers the optimal amounts of HMB (b-hydroxy b-methylbutyrate), leucine and L-lysine Ingredients proven in controlled scientific studies to promote muscle growth and aid muscle repair Suitable for any horse in training in any discipline Suitable for developing muscle or helping muscle to repair and recover from hard training Also suitable for horses that struggle to maintain condition or healthy muscle development Colour: One ColourAvailable sizes: 0.83kg / 830gmBrowse the full horse supplements range or explore the complete Science Supplements range at Just Horse Riders.