Reflex Nutrition L-Glutamine supports recovery and immune health with clean, 100% L-glutamine powder made for busy days that slot into a daily routine. The key active ingredient, L-glutamine, helps muscle recovery and may ease soreness after tough sessions. Reflex has a long-standing heritage in science-led supplements and fermentation-based production, underscoring its commitment to purity and reliability.

Available Sizes & Variants:

500 grams L-Glutamine powder - clean, single-ingredient glutamine made for recovery and immune support.

Benefits & Features:

• Helps speed up muscle recovery after tough training.
• Could help ease post workout soreness and speed recovery after sessions
• Regular use supports immune function during heavy training blocks, so you stay on track with workouts rather than sitting out, and maintain consistency month after month
• Great for stacking with a protein powder for muscle gain routines
• Purity comes from L-glutamine produced via fermentation, and Reflex quality standards emphasise clean ingredients

Reflex Nutrition has built a longstanding heritage in science-led supplements and fermentation-based production, underscoring its commitment to purity and reliability. L-glutamine is produced via fermentation, delivering a clean, single-ingredient powder with no fillers. The brand's focus on purity mirrors its commitment to reliable production and clear ingredient lists, making it easy to mix with water or shakes. For those already using collagen supplements, glutamine can slot into a balanced routine; and many athletes pair it with protein powder for muscle gain goals.

L-Glutamine, L-Glutamine

• GTIN: 5033579000206
• Manufacturer: Reflex Nutrition
• Categories: Best SellersGut Health SupplementsL-Glutamine Supplements, Powders & TabletsReflex NutritionSubscribe & Save Products
• 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 one serving (5g) mixed with 300ml of water or fruit juice. On training days, take one serving half an hour prior to exercise, one immediately after exercise, and one before bedtime. On non-training days, take one serving three times daily evenly spaced throughout the day, with one serving before bedtime. This product is a food supplement and should be used in conjunction with food as part of a healthy balanced diet, not as a substitute for such. Do not exceed the stated recommended daily dose. This product is not intended for use by persons under the age of 16. Keep out of reach of young children. Store in a cool, dry place away from direct sunlight.

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

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

L-glutamine is essentially an amino acid that acts as a building block for proteins and helps maintain normal cellular function in your body.

This form is 100% L-glutamine powder made via fermentation, delivering a pure amino acid supplement with no added excipients.

What Does L-glutamine Do?

L-glutamine is involved in supporting recovery, muscle maintenance and immune health in active folks, with evidence suggesting it may help ease soreness after tough training and speed up recovery in some contexts.

It could also aid gut barrier function under stress and support immune cell activity during busy training periods, matching general expert guidance on everyday physiological function.

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

Reflex Nutrition is our chosen partner for L-Glutamine because their facility-wide approach to fermentation-based production aligns with our commitment to clean, consistent manufacturing. This brand is recognised in the industry for its emphasis on a straightforward, single-ingredient formulation, which enhances transparency and reliability for active individuals seeking everyday recovery support. Our team carefully evaluated Reflex Nutrition against our standards for purity, consistency and traceability, and their robust production ethos stood out for its emphasis on repeatable quality across batches.

In the UK market, Reflex Nutrition resonates with athletes and enthusiasts through a reputation built on serious formulation practices and a focus on stable ingredient sourcing. Our collaboration reflects Reflex’s established manufacturing discipline and their alignment with our quality expectations, which you can review with our ingredient quality and purity standards. This brand was evaluated by Welzo's healthcare professionals for compliance with our rigorous selection criteria, ensuring this product is well suited to its purpose and to Welzo customers.