L-Glutamine obtained by bio-fermentation on a plant substrate offers outstanding purity and consistency. This natural process guarantees an amino acid free from GMO traces and from allergens such as gluten or dairy. Strict adherence to pharmaceutical-grade standards ensures consistent nutritional values in every batch. Unlike industrial processes that sometimes rely on animal-derived materials or chemical solvents, controlled microbial fermentation limits contaminant risk and supports nutrient bioavailability. The Kyowa Quality label, owned by Kyowa Hakko Bio Co. Ltd, certifies the highest purity grade available for L-Glutamine and is an international benchmark in the supplement industry.

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L-Glutamine is the most abundant amino acid in muscle tissue, making up around 60% of the free amino acid pool in skeletal muscle. During intense or prolonged exercise, the body draws heavily on its reserves to fuel muscles, liver, brain and immune cells. Strength and endurance athletes may benefit from regular supplementation to support muscle recovery and manage the effects of heavy training. Through its direct role in protein synthesis, L-Glutamine supports the repair of muscle fibres.

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L-Glutamine is the primary energy source for enterocytes, the cells lining the digestive tract. This role helps maintain the integrity of the gut lining. Since around 70% of immune cells are located in the gut, local gut support has knock-on benefits for overall immune function. In periods of exhaustion or increased physical stress, L-Glutamine can be a useful ally for the body’s natural defences. The purity of this bio-fermented form ensures excellent tolerance.

Also available in capsules: L-Glutamine 750 mg.

Take one scoop per day (3,800 mg of L-Glutamine), dissolved in a large glass of water or a cold beverage, ideally with a meal. A daily course of 4 to 8 weeks is recommended, repeatable as needed. The 150g pouch provides about 40 days of supplementation. L-Glutamine dissolves easily in water and has a neutral taste; it can also be added to a post-workout protein shake.

Food supplement. Not a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach of children.

Is bio-fermented L-Glutamine suitable for vegans?

Yes. Dynveo L-Glutamine is produced by plant-based bio-fermentation and fully meets the requirements of vegan and vegetarian diets. No animal-derived ingredient is used in manufacturing, and the high purity of the product greatly reduces the risk of intolerance or allergy.

Powder or capsules — which format should I choose?

It comes down to preference: the powder dissolves easily in water or shakes and lets you fine-tune the dose with a 3,800 mg scoop. Capsules are convenient and discreet for travel or work, at 750 mg per capsule. Both formats offer the same Kyowa Quality purity.

When should I take L-Glutamine for best results?

Taking L-Glutamine with a meal supports good absorption. After a workout, it helps restore muscle reserves more quickly. During periods of high stress, a daily dose supports the gut lining and natural defences. A daily routine over 4 to 8 weeks maximises the benefits for long-term gut health.

Herba Barona is an independent specialist supplement shop in the heart of Paris — established in 2006. What you order is genuinely on our shelves: we ship from our own stock, with no dropshipping and no long waits.

Visit us at 10 rue Théophile Roussel, Paris 12 — or use Click & Collect and pick up your order in-store. We also deliver across France and Europe. Friendly, expert advice in English from our team.

Where is the shop?

Herba Barona is at 10 rue Théophile Roussel, 75012 Paris — a two-minute walk from Ledru-Rollin (line 8), close to Bastille. Open Tuesday to Saturday, 9:30 am–6:30 pm.

Can I order online or collect in store?

Yes. We ship across France and Europe under the same conditions as our French store, or choose Click & Collect to pick up your order for free at our Paris shop.