L-Glutamine Powder – Pure Amino Acid for Gut & Muscle Support | UK

Pure amino acid for gut and recovery support.

Hard training and modern life both place a heavy demand on your body — especially your muscles and your digestive system. When those systems are under pressure, recovery and everyday wellbeing can start to suffer.

L-Glutamine is one of the most abundant amino acids in the body, naturally used by both the gut and muscle tissue. We wanted a glutamine that does one thing well: no sweeteners, no fillers and no unnecessary extras. Just pure amino acid you can add to any drink or shake to support your body when your routine is demanding.

Glutamine plays a natural role in supporting the cells that line your digestive tract and is also used by muscles during and after exercise. This 100% pure, unflavoured powder is designed to support:

• Gut Lining Integrity: Helps maintain digestive comfort and a healthy gut barrier.
• Muscle Recovery: Replenishes depleted amino acid stores after intense exercise.
• Immune System Function: Provides vital fuel for immune cells during periods of physical stress.
• Clean Nutrition: No fillers, sweeteners, or additives. Just pure amino acid powder, nothing else.

*Please see the product images for the full nutritional label.

Mix 5g (one scoop) with water, juice or your protein shake.

Active Tip: Use once or twice daily. Because it is unflavoured, it mixes seamlessly into other drinks. Many people take it after training for muscle recovery, or first thing in the morning on an empty stomach for targeted gut support.

Glutamine is the most abundant free amino acid in the human body, serving as a critical fuel source for immune cells and the intestines. Explore the clinical data:

• Gut Barrier Function: Studies indicate that Glutamine is a key energy source for intestinal cells, helping to maintain the integrity of the gut lining and prevent permeability ("leaky gut").
• Muscle Recovery: Research has shown that L-Glutamine supplementation can result in faster recovery of peak torque and reduced muscle soreness following eccentric exercise.
• Immune Support: During heavy training, plasma glutamine levels can drop. Supplementation helps provide necessary fuel for immune cells (lymphocytes and macrophages) to function correctly.

The Health Improvers Difference:

• Quality assured: UK manufactured to GMP standards.
• Purpose-led: 100% pure with no unnecessary additives.
• Risk-free: Covered by our 60-day money-back guarantee.

Fast, Free UK Delivery

• Free Standard Delivery: All orders are shipped completely free of charge using Royal Mail Tracked 48, so you can follow your package to your door.
• Flexible Options: Need it faster? Additional expedited shipping options are available at checkout.
• Efficient Dispatch: To ensure you get your order as quickly as possible, some inventory is managed and shipped directly by our trusted fulfillment partners.

For full details, view our Shipping Policy.

Our 60-Day "Gut & Recovery" Guarantee

We stand behind our formulas. That is why we offer a completely risk-free 60-day return policy. You have 60 full days after receiving your item to request a return.

If you take L-Glutamine Powder consistently and don't feel a noticeable difference in your digestive comfort or post-training recovery, simply contact us. We will arrange a hassle-free return and a full refund. View our Refund Policy for full terms.