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High-purity

L-Glutamine

For gut lining support, immune health, and faster muscle recovery.*

  • 90-day supply, delivering 5,000 mg of free-form L-glutamine per scoop to fuel intestinal cells and support whole-body recovery. Glutamine is the body’s most abundant amino acid, essential for the health of the intestinal lining and immune system. This unflavored powder offers a clinical-strength dose to help restore glutamine levels during times of stress, illness, or physical training.
  • Pharmaceutical-grade quality, in an easy-to-mix format for gut repair, recovery, or metabolic stress. Our L-glutamine is 100% free-form and pharmaceutical grade, supporting optimal absorption and biological availability. It mixes cleanly into water or smoothies, making it ideal for those with digestive sensitivities or increased recovery needs.
  • Made in USA with globally sourced ingredients.  Our L-Glutamine is proudly manufactured in the USA with globally sourced ingredients in a cGMP-certified facility. It undergoes rigorous third-party testing and is free from sugar, salt, dairy, yeast, wheat, gluten, corn, soy, preservatives, artificial colors or flavors.

Delivered in plastic-free packaging, this high-purity formulation with 5,000 mg of free-form L-glutamine offers a restorative daily ritual that helps support gut lining support, immune health, and faster muscle recovery so you can feel more balanced, resilient, and ready to rebuild from within.*

$29
$26

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One-time disclaimer

Non-GMO
Gluten-free
Vegan
Plastic-free
Made in USA
  • Made in USA

    - with globally sourced ingredients

  • 100% plastic-free

    - with a commitment to zero-waste

  • Free shipping

    - with carbon-neutral delivery on $75+ orders

FAQs

What does it do?

L-Glutamine supports muscle recovery, gut lining integrity, and immune function. As the most abundant amino acid in the body, it helps repair tissues, reduce post-workout soreness, and promote digestive resilience.*

Who is it for?

This is for anyone recovering from intense exercise, managing gut issues, or looking to support immune balance. It’s especially helpful for athletes, those healing from stress or illness, or anyone focused on repair and recovery.*

How soon will I feel a difference?

Many customers notice improved recovery and reduced post-exercise fatigue within the first 1–2 weeks. By weeks 3 to 5, digestive balance and immune resilience often feel more supported. With continued use, deeper benefits like muscle preservation and long-term recovery steadily build.*

Is it safe to take every day long-term?

Yes, L-Glutamine is an amino acid naturally found in the body. Supplementing daily is safe and especially useful during times of physical stress, recovery, or immune demand. As always, consult your healthcare provider if you have specific conditions or are taking other supplements.*

What if I’m pregnant, nursing, or on medication?

Please consult your healthcare provider before using if you are pregnant, nursing, taking medication, or have a medical condition.*

Week 1–2

L-Glutamine begins supporting muscle recovery and reducing fatigue after exercise, helping your body recharge more efficiently.

Week 3–5

Digestive comfort often improves and immune function feels more supported, especially during times of stress or illness.

Month 2+

With regular use, L-Glutamine promotes resilience by supporting muscle preservation, gut health, and sustained recovery during periods of increased physical or immune demand.

Build on progress

The perfect pairings

Consider pairing L-Glutamine with BCAA Complex or Magnesium Glycinate to support muscle repair, nervous system balance, and immune health, or Electrolytes for hydration and recovery after physical stress.*

Supporting acts

Beyond supplements

It’s called a supplement for a reason. L-Glutamine is just one part of your daily ritual for gut lining support, immune health, and faster muscle recovery. It’s here to add to what truly matters — what you eat, how you move, and the intentional choices you make each day.

  • Eat to repair

    Support recovery with nutrient-dense, gut-friendly foods like bone broth, sweet potatoes, eggs, fermented vegetables, and cooked greens. These provide amino acids, prebiotics, and micronutrients that work with glutamine to fuel tissue repair and digestive balance.

  • Move to recover

    Choose gentle, restorative movement like walking, stretching, or low-impact strength work. This supports circulation and reduces stress on muscles and joints, helping glutamine do its job in rebuilding muscle tissue and restoring immune balance.

  • Reduce daily stress

    Chronic stress depletes glutamine stores and weakens gut lining integrity. Carve out time for stillness, deep breathing, or anything that helps downshift your nervous system. These choices create space for your body to repair more deeply.

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Customer Reviews

Based on 3 reviews
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Savannah Lee
Arken does it again!

I’ve loved every product from them so far. This powder is no exception. Super clean and beautifully packaged.

M
Maya B.
Minimalist and powerful...

This is how all supplements should be...just one ingredient that works. Really pleased with how this makes me feel.

M
Marcus Fields
My new post-gym ritual

Mixes right into water with no taste. I take it after every session and my joints don’t ache like they used to.

*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.