Results... Period! 100% Pharmaceutical Grade Increase Muscle Fiber Size/Hypertrophy Greatly Improves Anaerobic Activity Enhance Muscular Recovery 60 Servings Dietary Supplement BSF Banned Substance Free Certified Certified CGMP Gluten Free PRPSupps Glutamine300 is 100% pure glutamine. Glutamine is the most abundant amino acid found in the skeletal/muscular system. Glutamine has been proven to enhance exercise performance, promote recovery, reduce muscle-wasting and has also been shown to strengthen the immune system.