Gut L-Glutamine
Gut L-Glutamine
10.6 oz / 300 g Unflavored Powder
Most L-Glutamine is made overseas where quality standards vary. We believe in uncompromising quality. That is why every step - from manufacturing to packaging to testing - happens right here in the USA. Quality you can trust.
Complete Transparency,
No Hidden Surprises
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Gluten, dairy & soy free
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No proprietary blends
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No unnecessary fillers
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Third-party lab tested
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Vegan & non-GMO
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Made in USA L-Glutamine
Supplement Facts & Ingredients
Supplement Facts & Ingredients

Other Ingredients: None.
Third Party Tested
Third Party Tested
We partner exclusively with ISO 17025 accredited laboratories here in the USA to test for common allergens, heavy metals and microbiological contaminants. View certificate of analysis below.
How To Enjoy
How To Enjoy
Mix 1 scoop (5 g) with 8 ounces (240 ml) of water or your favorite beverage, 1-2 times daily, between meals or as directed by a healthcare professional.
Use this unflavored L-Glutamine powder when you want to mix it with your favorite beverage without altering the taste. For a refreshing option, try our Raspberry Lemonade flavored Gut L-Glutamine. Both options make it easy and enjoyable to get your daily serving of L-Glutamine.










Trusted by 1000s for better gut health

What Makes Us Different
Most supplement companies cut corners where you can't see - using overseas manufacturing, skipping independent testing and loading products with gut-irritating fillers. We take the harder, more expensive path because your gut health deserves better than “industry-standard”.


Third-Party Tested In The USA
Most companies only test their products internally - we do both. Our formulas get tested in-house, then verified again by independent ISO-certified labs where scientists screen for contaminants and validate our allergen-free promises. Because we believe your gut health journey deserves nothing less than exceptional quality.


Verified Customer Reviews

60-Day Money Back Guarantee
We stand behind
every bottle.
Try any Essential Stacks product completely risk-free for 60 days. Not satisfied? Get a full refund - even if the bottle is empty. No questions asked, no explanations needed.

Frequently Asked Questions
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What does L-Glutamine do for my gut health?
L-Glutamine is the primary fuel source for your intestinal lining cells. It helps maintain gut barrier function and supports your digestive tract†
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How do I take Gut L-Glutamine?
Mix 1 scoop (5g) with 8 ounces of water or your preferred beverage, 1-2 times daily. It dissolves instantly with no taste or grit.
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How long before I see results?
Most people notice digestive health improvements within 2-4 weeks of consistent daily use, though some experience benefits sooner.
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What makes your L-Glutamine different from other brands?
Made in the USA from start to finish, third-party tested by independent labs, and contains no fillers, flavors, or additives - just pure L-Glutamine.
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When is the best time to take it?
Between meals on an empty stomach for optimal absorption. Many people take it first thing in the morning or before bed.
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Is this tested and free from allergens?
Yes, it is independently tested and verified free from gluten, dairy, soy and casein. It's also non-GMO and vegan.
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Do you offer a money-back guarantee?
60-day money-back guarantee, even if you've used the entire bottle. No questions asked. Applies to 1 bottle on your first order only.
Gut L-Glutamine
Unflavored