L-Glutamine is a daily supplement that helps your gut stay healthy and your immune resilience stay strong, keeping your gut barrier solid and energy ready for recovery.

Available Sizes & Variants:

90 capsules – convenient daily dosing for steady support.

Benefits & Features:

• Pure L-glutamine supports gut lining and immune resilience.
• Designed for daily use, capsules fit easily into busy routines, minimising worry for sensitive diets.
• Produced in the UK to GMP standards ensures consistent quality in every bottle.
• Vegetarian capsules use plant based shell and are free from common allergens.
• If you’re training hard or stressing your system, L-glutamine can support energy for cells lining your gut and immune cells, helping you stay on track.

This brand, Lamberts, has a long standing reputation for quality, so you can trust this l glutamine option to be clearly labelled and allergen free. Manufactured in the UK to GMP standards, the capsules use a plant based shell and rice flour bulking agent, keeping the focus on purity. This level of transparency and consistency helps it stand out in a crowded market. A clean l glutamine option supports gut and immune resilience for everyday wellbeing. This isn't a protein powder for muscle gain, but it pairs well with popular supplements such as best creatine for women.

L-Glutamine, Encapsulated With; Capsule shell (Hydroxypropyl Methylcellulose) Cellulose Magnesium Stearate Silicon Dioxide.

• GTIN: 5055148411039
• Manufacturer: Lamberts
• Categories: Glutamine SupplementsGut Health SupplementsLambertsNew Arrivals
• 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.

1. The recommended dosage for the supplement is between 1 to 6 capsules per day.
2. It is advised to consume the amino acids with fruit juice or water instead of milk.
3. The most optimal time to take an amino acid supplement is 30 minutes before a meal or before going to bed. PurePea™: Mix 33 grams (approximately one scoop) in 8 ounces of water or any other beverage per day\, or as directed by your health-care practitioner.

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

1. Supports Healthy Digestion: L-Glutamine is an essential amino acid that plays a crucial role in maintaining the health of the digestive tract. It helps to repair and protect the lining of the gut, promoting optimal nutrient absorption and digestion.
2. Boosts Immune System: L-Glutamine is a key nutrient for immune system function, as it is a major fuel source for immune cells. Regular supplementation with L-Glutamine can help strengthen the immune system and reduce the risk of infections and illnesses.

The Active Ingredient Is: L-Glutamine

L-Glutamine is basically an amino acid that acts as a building block for proteins and a nutrient involved in energy metabolism.

This product contains pure L-Glutamine in a veggie capsule form that's suitable for vegan and allergen-conscious use.

What Does L-Glutamine Do?

L-Glutamine helps maintain the gut barrier and fuels gut and immune cells, supporting normal physiological processes as EFSA-aligned information describes. Dr. Coëffier from a leading university shared evidence about gut barrier support when stress is present.

In healthy people, these roles relate to standard energy and amino acid balance, contributing to overall gut and immune system function without implying disease outcomes.

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

Welzo chooses brands that show a solid track record of quality, openness and UK-made quality. Lamberts fits our criteria with a strong reputation in the European supplement market and a long-standing heritage as a well-established UK brand known for compliance and quality. The manufacturer produces L-Glutamine in the UK to pharmaceutical GMP standards, reinforcing reliability, traceability and consistent product quality.

From a product quality perspective, Lamberts offers a clearly labelled, 100% pure L-Glutamine formulation that is vegetarian and allergen-conscious, with transparent ingredient listing and allergen exclusions. This aligns with our emphasis on safety and purity, reinforced by our ongoing assessment through our ingredient quality and purity standards and the involvement of our expert team of doctors, nurses, and nutritionists in the Vetting process.

Why this brand over others? Lamberts stands out for its UK manufacturing heritage, compliance focus and clear commitment to quality and consistency—a fit for this supplement aimed at supporting gut health and immune function as highlighted in the research into the product.

Overall, this brand aligns with Welzo’s selection criteria, product fit for L-Glutamine, and our British market demand for trusted, high-quality sourcing.