Premier Glutamine by Premier Research Labs delivers a practitioner-grade source of free-form L-glutamine, now available in a powder format for enhanced dosing flexibility and clinical application.* 

Glutamine is the most abundant amino acid in the body and plays a central role in protein synthesis, muscle recovery, and gastrointestinal health.* 

This formula provides L-glutamine from beneficial bacteria, offering a clean, non-synthetic source that aligns with practitioner-grade purity standards.*

Targeted Muscle & Recovery Support

During periods of physical stress or high training volume, glutamine demand increases significantly. Supplementation supports muscle recovery, glycogen replenishment, and preservation of lean muscle mass.*

By supporting protein synthesis pathways, glutamine plays a foundational role in recovery protocols, athletic performance, and overall metabolic resilience.*

Gastrointestinal Integrity & Barrier Function

Glutamine serves as a primary fuel source for intestinal epithelial cells, helping maintain the integrity of the intestinal lining and supporting mucosal health.*

Healthy glutamine levels help sustain the barrier between the gastrointestinal tract and systemic circulation, supporting the body’s natural defense against unwanted compounds and promoting optimal nutrient absorption.*

Glutathione Production & Cellular Protection

Glutamine is a critical precursor in the production of glutathione, one of the body’s most important endogenous antioxidants.*

Glutathione supports cellular protection against oxidative stress and plays a key role in maintaining liver function and detoxification pathways.*

Clean, Practitioner-Grade Powder Format*

Free-form L-glutamine derived from beneficial bacteria with no unnecessary synthetic inputs.**

Rigorous Quality Testing

Verified for identity, purity, potency, and contaminants to ensure practitioner-grade quality.*

1. Franco, Rodrigo & Schoneveld, O & Pappa, Aglaia & Panayiotidis, Mihalis. (2007). The central role of glutathione in the pathophysiology of human disease. Archives of physiology and biochemistry. 113. 234-58. 10.1080/13813450701661198
   https://www.tandfonline.com/doi/full/10.1080/13813450701661198
2. Lee WJ, Hawkins RA, Viña JR, Peterson DR. Glutamine transport by the blood-brain barrier: a possible mechanism for nitrogen removal. Am J Physiol. 1998 Apr;274(4):C1101-7. doi: 10.1152/ajpcell.1998.274.4.C1101. PMID: 9580550.
   https://journals.physiology.org/doi/full/10.1152/ajpcell.1998.274.4.C1101
3. Cruzat V, Macedo Rogero M, Noel Keane K, Curi R, Newsholme P. Glutamine: Metabolism and Immune Function, Supplementation and Clinical Translation. Nutrients. 2018;10(11):1564. Published 2018 Oct 23. doi:10.3390/nu10111564
   https://pmc.ncbi.nlm.nih.gov/articles/PMC6266414/