Check the listing for details. Swanson L-Glutamine Powder - Featuring Ajipure 12 oz Powder. Condition: New. Listed at 23.39 USD. Fortify your muscles and your mind every day with the pure amino acid nutrition of Swanson L- Glutamine! A favorite among fitness buffs, glutamine is the most abundant amino acid in skeletal muscle tissues, where it works to promote strength and endurance--but that's not all it does. Glutamine's unique molecular structure allows it to pass through the blood/ brain barrier to nourish vital brain tissues. Once in the brain, glutamine is converted into glutamic acid, the base material for key neurotransmitters needed for healthy mental and nervous system function. Glutamine also provides fuel for immune cells through its activity in the gut where it may help maintain intestinal barrier function to promote GI tract integrity. Since a solid 70% of your immune system stems from your gut, keeping your digestive system happy is a win for your immune function as well. Swanson L-Glutamine Powder mixes easily into juice or water and delivers a potent 5 g per scoop.From Japan-based AjinomotoPopular among fitness buffsMixes easily with juice or water100% MONEY BACK GUARANTEE – Our products reflect our commitment to giving you the best quality and service at the best price. We guarantee that every product you purchase is made from the purest, freshest nutrients and meets the highest quality standards. If you aren’t completely satisfied with any product(s) purchased within the last 30 days, simply return the unused portion to us for a full refund.Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are formulated for 12 months.