Established-1971- Makers #1 of Glutamine† 5,000 mg (5 g) Per Serving Certified Gluten-Free Pharmaceutical Grade Amino Acid Powder Supports Muscle Tissue Supports Intestinal and Immune Cells Dietary Supplement 55 Servings Certified B Corporation Kosher-Parve AjiPure Amino Acids †Based on SPINSscan Natural for Iron-Tek 52 Weeks ending 10/8/17 Our Pledge of Integrity Authenticity Cleanliness Freshness Consistency Accuracy Glutamine is the most abundant "free" form amino acid in the body, and is concentrated in muscle tissue. As an amino acid, it supports the formation and maintenance of all cells in the body including muscle, intestinal and immune cells. A pharmaceutical-grade amino acid powder tested for purity as per pharmaceutical standards.