Due to the enormous amount of positive feedback on our Pure Instantized BCAA , we have decided to add Pure Instantized Glutamine to our Essential Series line. Just like our BCAAs, you can expect nothing but the purest form of Glutamine. That means no fillers, additives, or artificial ingredients. Glutamine is the most common amino acid found in your muscles. Over 61% of skeletal muscle is Glutamine. It consists of 19% nitrogen, making it the primary transporter of nitrogen into your muscle cells. During intense training Glutamine levels are greatly depleted in your body, which decreases strength, stamina, and recovery. It could take up to 6 days for Glutamine levels to return to normal. Glutamine also plays a key role in protein synthesis. Studies have shown that Glutamine supplementation can minimize the breakdown of muscle and improve protein metabolism.