What is L-Glutamine? L-Glutamine is the most abundant amino acid found in muscle cells, comprising over 60% of skeletal muscle. It promotes lean muscle protein synthesis and natural human growth hormone release. L-Glutamine has also been shown to improve gut health, boost immunity and decrease muscle soreness. Benefits of L-Glutamine Promotes lean muscle growth and fat reduction Minimizes breakdowns of muscles Increases levels of natural HGH (human growth hormone) Improves protein metabolism Improves focus and concentration EHP Labs L-Glutamine is HPLC tested to ensure that it is the highest quality pharmaceutical grade supplement. Directions for use: Take 1-2 scoops of powder with 295ml of water. For workout performance and recovery, take one scoop before and after training. Do not exceed 3 scoops in one day.