L-Glutamine helps gut health and immune function, keeping the digestive lining strong and recovering from stress, with Klaire Labs' hypoallergenic capsules backing quality. Hypoallergenic, vegan capsules mean fewer worries for sensitive stomachs, and USA manufacturing strengthens our confidence in purity. This heritage, together with strict quality controls, helps you trust what you’re taking daily.

Available Sizes & Variants:

100 capsules - Daily support that's easy to fit into a busy routine.

Benefits & Features:

• Supports gut lining and immune defence.
• L-glutamine fuels intestinal cells to help maintain mucosal integrity and support recovery after physical stress, while promoting daily comfort and steady energy throughout the day.
• Daily use remains gentle on sensitive stomachs.
• Active ingredients work with your body's tissue repair processes, helping to support gut barrier function.
• High quality, USA manufactured, hypoallergenic formulation with clear labelling and vegan friendly capsules; trusted by healthcare professionals for reliability, purity, and ease of integration into daily wellness routines.

Klaire Labs (SFI Health) is trusted in clinical nutrition for its stringent manufacturing standards and hypoallergenic formulations. They use USP grade l glutamine and vegan capsules, manufactured in the USA under tight quality controls. This brand's reputation rests on purity, clear ingredient disclosure, and consistent support for sensitive individuals seeking reliable gut health supplements. In daily life, this means a dependable, easy addition to meals or routines - especially if you're aiming to support gut integrity, immune function, and overall wellness. Fits seamlessly into daily life. Many users also pair l glutamine with protein powder for muscle gain.

(other) Vegetarian capsule (hydroxypropyl methylcellulose, water), ascorbyl palmitate, and microcrystalline cellulose.

• GTIN: 828054010420
• Manufacturer: Klaire Labs
• Categories: Glutamine SupplementsGut Health SupplementsKlaire LabsNew ArrivalsPopular Supplement Brands
• 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.

The supplement should be taken in the form of 1 capsule, either 1 to 4 times per day in between meals, or as advised by a healthcare professional. As a food supplement\, take 1-4 capsules daily\, in divided doses\, with meals\, or as directed by a healthcare professional.

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

1. Supports Muscle Recovery: L-Glutamine is a key amino acid that plays a crucial role in muscle recovery after intense physical activity. It helps repair damaged muscle tissue and promotes faster healing, making it an essential supplement for athletes and fitness enthusiasts.
2. Boosts Immune System: L-Glutamine is also known for its immune-boosting properties. It helps in the production of white blood cells, which are responsible for fighting off infections and diseases. By supplementing with L-Glutamine, you can give your immune system the support it needs to stay strong and healthy.

The Active Ingredient Is: L-Glutamine (Free Form)

L-Glutamine is an amino acid that acts as a key nutrient in the body, especially for gut and immune functions. This product uses L-Glutamine in its free form for high bioavailability.

This formulation is produced with USP-grade L-glutamine and is described as hypoallergenic and suitable for sensitive individuals, with manufacturing in the USA under professional quality controls.

What Does L-Glutamine Do?

L-Glutamine is involved in fuelling intestinal cells, supporting the health of the digestive lining and supporting immune defence as part of normal physiological function. It is also recognised for its role in tissue repair and energy provision within the gut and immune system.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

We picked Klaire Labs as our partner for L-Glutamine because their track record in clinical nutrition is outstanding. The brand is widely recognised for rigorous manufacturing standards and hypoallergenic formulations, earning the trust of healthcare professionals in integrative medicine circles. Klaire Labs’ commitment to purity is clear in their use of USP-grade L-glutamine and their emphasis on high quality, vegan and non-GMO raw materials, produced in the USA under professional-grade controls.

This focus on quality directly shapes product integrity: hypoallergenic capsules with simple ingredient lists align with Welzo's safety and transparency standards, backed by our thorough testing protocols and supplier certifications. For clinicians and those with sensitivities, Klaire Labs’ reputation as a leader in evidence-based supplement manufacturing strengthens confidence in choosing this brand for L-Glutamine.

Our recommendation comes from a rigorous vetting process by our expert team of doctors, nurses, and nutritionists and backed by our rigorous testing protocols. This brand is especially well matched for this supplement, and it also resonates with the UK market through its well-regarded manufacturing heritage and clinician endorsement.