Life Extension, L-Glutamine Powder, 3.53 oz
Available in stock Last updated June 10, 2026
Ingredients
Ingredients
Suggested Use
Suggested Use
Warning
Warning
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Product Details
- Gluten Free
- Non GMO LE Certified
- For Mood, Muscle and Immune Support
- Dietary Supplement
- Vegetarian
Glutamine is the most abundant free amino acid circulating in the blood as well as stored in the skeletal muscles. Glutamine is a diverse amino acid that is utilized in numerous vital functions. It is necessary for rapidly dividing cells, including those of the gut and immune system. It is also used as an energy source in mitochondria, and is a precursor of the brain neurotransmitter glutamate. Glutamine is also needed for optimal nucleotide biosynthesis and protein synthesis.
The function of glutamine in stimulating glycogen synthase, the enzyme which controls the synthesis and storage of glycogen fuel in muscles and liver, may provide a mechanism by which glutamine supplements promote enhanced fuel stores.
Glutamine is an important fuel for some immune cells, such as lymphocytes and macrophages, that may have specific immunostimulatory effects.
People that do heavy exercising can lower their glutamine levels causing stress to their body and immune systems. For that reason, supplementing with glutamine can be important to a serious athlete, someone challenged with muscle loss, or who wants to help maintain optimal immune function under heavy stress.Glutamine supplements cause a rapid rise in cellular glutamine levels and glutamine stores in muscle.
- Gluten-free, Non-GMO, and Vegetarian
Typically, US domestic orders are delivered within 5 to 8 business days from the day order is shipped unless the product is back ordered (Out of Stock).
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The total delivery time for your order is the period of time from when you place your order until the time you receive it. It is comprised of two parts- the processing time and the shipping time.
A. Processing time- The time from when you submit your order to when the item leaves the warehouse. In most cases, this is 3 to 5 business days. Please keep in mind that these are estimates based on previous shipping times and may sometimes take a little longer based on stock availability and demand.
B. Standard Shipping- Standard Shipping typically takes 5 to 8 business days to arrive, within the continental 48 U.S. only, excluding Hawaii, Alaska, Virgin Islands & Puerto Rico.
C. Expedited Shipping- Currently we are not providing Expedited Shipping service(s).
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Vitals
| Manufacturer | Life Extension |
|---|---|
| UPC | 737870141105 |
| Package Quantity | 3.53 oz |
| Form | Powder |
| Supplement Health Focus | Energy and metabolism , Immune support |
| Dietary Preferences | Gluten-free , Non-GMO , Vegetarian |
| Certifications | Gluten-free, Non-GMO, Leaping bunny certified |
| Product Category | Single Amino Acid Supplements |
| Product Type | Amino Acids |
| Age Group | Adults |
| Country of Origin | USA |
| Shipping Weight | 0.22 lb |