L-Glutamine is a high-strength amino acid supplement that supports gut health and lean muscle, helping you stay steady under stress and train more effectively. Pure Encapsulations is known for purity, vegan-friendly formulas and strict allergen controls, produced in GMP-certified facilities. Those standards help ensure you get a reliable, well tolerated supplement that supports gut and muscle health. It’s trusted by pros. Quality you can feel.

Available Sizes & Variants:

90 vegan capsules — convenient daily support for gut and muscle health.

Benefits & Features:

• Supports gut health and the intestinal barrier for everyday comfort.
• L-glutamine is the body's main fuel for the gut lining and immune cells, helping recovery during stress and keeping digestion and overall resilience during tough training.
• Hypoallergenic, vegan-friendly formula designed for sensitive systems.
• Manufactured in GMP-certified facilities with strict testing for identity and potency.
• Daily use supports steady recovery after hard workouts while the vegan capsule shell makes it easy to fit into busy routines without sacrificing quality.

Pure Encapsulations has a reputation for purity, traceability, and allergen testing that professionals rely on. L-glutamine plays the star role here as a vital fuel for gut lining and immune cells, helping recovery and digestion under stress. The capsules are produced in USA-based GMP-certified facilities and go through strict identity and potency checks. Customers appreciate the quiet confidence of a trusted brand, and many pair this with a protein powder for muscle gain or magnesium glycinate for a well rounded recovery routine.

L-glutamine, ascorbyl palmitate. Vegetarian capsule (hydroxypropyl methyl cellulose).

• GTIN: 766298022307
• Manufacturer: Pure Encapsulations
• Categories: Gut Health SupplementsL-Glutamine Supplements, Powders & TabletsNew ArrivalsPopular Supplement BrandsPure Encapsulations
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1 capsule between meals, 1 to 3 times daily. Take 1 capsule daily with or without food\, or as directed by your healthcare professional.
Do not take within 5 hours of bedtime as it may interfere with sleep.

Please consult the product packaging for accurate instructions on how to use the product.

L-Glutamine is the most plentiful amino acid in the body and is viewed as essential for gut lining integrity and muscle preservation. This form is free-form L-glutamine, shown up in a vegetarian capsule for delivery as a single-ingredient supplement.

This product uses a high-strength, single-ingredient amino acid formulation with the capsule shell and tiny stabilisers picked to minimise allergens and maximise purity.

What Does L-Glutamine Do?

L-Glutamine helps support intestinal mucosal integrity and may aid in keeping barrier function up during metabolic stress. It's also tied to muscle recovery contexts in athletic and clinical settings, aligning with evidence on gut and muscle health support.

Scientific discussions recognise its role as a fuel source for cells of the gut lining and immune system, with studies noting improvements in intestinal barrier function and GI comfort under stress. NHS and EFSA guidance emphasise normal physiological roles of amino acids in metabolism.

Dr. Zuhl from the University of Idaho found that glutamine supplementation can improve markers of intestinal barrier function and reduce GI symptoms in stressed or athletic individuals.

This supplement isn't intended to diagnose, treat, cure, or prevent any disease.

Pure Encapsulations is our go-to maker for L-Glutamine because of a very long-standing commitment to purity, openness and clinician trust.

Founded on the idea of delivering high-quality, evidence-based supplements, this brand has earned recognition in the healthcare community for strict ingredient sourcing and hypoallergenic formulations that are vegan-friendly and free from unnecessary additives.

They operate in USA-based GMP-certified facilities with rigorous identity, potency and purity testing for every batch, and they prioritise high-grade, traceable ingredients. This combination reinforces the credibility of Pure Encapsulations as a supplier we can rely on, a point we emphasise to patients and practitioners alike can be explored through our expert team of doctors, nurses, and nutritionists and our commitment to our quality assurance criteria.

We selected Pure Encapsulations for this product because their manufacturing philosophy aligns with Welzo’s standards—precision in formulation, allergen controls, and a focus on evidence-backed, single-ingredient supplements—making them an ideal fit for L-Glutamine. This brand-product match supports our comprehensive evaluation process and our goal to offer trusted, well-supported options.