What’s inside this formula?
Life Extension’s L-Glutamine — 500 mg is listed here in the amino acids collection. This article looks at the selected 100 vegetarian capsules; one-capsule serving pack, then puts its ingredients into context.
One capsule lists 500 mg L-glutamine as a free-form amino acid. The bottle contains 100 capsules and uses a vegetable-cellulose capsule.
Check the original label ↗This collection includes protein-forming amino acids and related compounds such as taurine and carnosine. They do not all have the same roles. Some amino acids must come from food, while the body normally makes others. An isolated ingredient is different from a complete protein source; the exact compound and the reason for considering it both matter.
The pack details above come from the manufacturer. Ingredient research below does not establish the effects of this exact product or independently verify its contents.
Where might it be useful?
Protein-forming amino acids
Essential amino acids are needed to make proteins. This role should not be transferred to every related compound in this collection or treated as proof that an isolated supplement is needed.
Specific nutritional roles
Different amino acids have distinct functions; evidence should be assessed for the exact ingredient rather than the category as a whole.
What the research can — and cannot — tell us
Evidence must match the exact ingredient and purpose. Findings for one amino acid cannot establish benefits for another. Oral carnosine is not equivalent to beta-alanine supplementation for increasing muscle carnosine. Animal longevity findings for taurine do not establish longer human life. Adequate nutrition and an identified reason to supplement are more useful than broad recovery or anti-ageing promises.
What deserves your attention?
The manufacturer specifically advises consulting a healthcare practitioner before use with advanced liver disease. Match the 500 mg capsule rather than the brand’s powder, whose serving is different.
Suitability comes before strength
Check the exact ingredient and other added compounds. Pregnancy, significant illness, medicines and prescribed dietary restrictions may alter suitability; discuss targeted amino-acid supplementation with a qualified clinician.
Dietary details for this product
Dietary status not confirmed The reviewed manufacturer page does not establish whole-product vegan or vegetarian suitability. A vegetable-cellulose capsule alone does not confirm the entire formula.
A dietary label and an allergy assessment answer different questions. Check every ingredient, the capsule or softgel materials and the allergen statement on the pack you receive. If you take medicines, have a health condition, are pregnant or are choosing for a child, discuss the full formula with a qualified clinician.
Make the comparison meaningful.
- Match the exact version.Look for Life Extension · L-Glutamine — 500 mg and the 100 vegetarian capsules; one-capsule serving pack. A similar name or bottle can contain a different strength, blend or serving.
- Compare like with like.Read the serving size alongside the active ingredient amount. Capsule count, compound weight and total blend weight can describe different things. Use the label notes above to see what matters for this formula.
- Check the seller and final cost.Review seller identity, expiry, batch details and any Indian import information. Compare the final delivered price only after matching the formula. Prices and stock are checked on the retailer’s site.
Keep the label beside the decision.
Open the complete product profile for its source, dietary notes and available shopping destination.
Is this an endorsement or a medical recommendation?
No. This is an editorial guide to a selected product and its ingredient context. We have not independently tested this bottle or established a clinical benefit for this exact formula. A product’s inclusion is not a recommendation that everyone should take it.
Does Proof & Price earn from shopping links?
Some product-profile links are paid links and are labelled. As an Amazon Associate we earn from qualifying purchases. Manufacturer source links are provided for checking the label. Read our affiliate disclosure.
Read, check, decide.
Product label reviewed 2026-10-26. Ingredient context reviewed 2026-10-26. This article has not received independent clinical review. Packaging and formulas can change; the current pack takes precedence.
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