Life Extension L-Glutamine, 500 mg L-glutamine, amino acid, supports muscle health and immune health, gluten-free, non-GMO, 100 vegetarian capsules
Life Extension L-Glutamine, 500 mg L-glutamine, amino acid, supports muscle health and immune health, gluten-free, non-GMO, 100 vegetarian capsules
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Life Extension L-Glutamine, 500 mg L-glutamine, amino acid, supports muscle health and immune health, gluten-free, non-GMO, 100 vegetarian capsules

Key item features

  • Fuel your active lifestyle—Glutamine is an amino acid your body uses for protein production. While it’s a must-have among serious athletes, glutamine is a great option for anyone who leads an active lifestyle.
  • Gut healthy, immune strong—Glutamine can be found in the blood, as well as stored in the skeletal muscles and liver, and in higher concentrations than any other amino acid. It’s an important energy source for cells lining the gut and immune cells, making it critical for a healthy digestive tract and immune response.
  • Antioxidant support—Regular body movement is terrific for whole-body health. But engaging in heavy exercise can affect glutamine levels, causing stress to the body. Our L-Glutamine formula helps support antioxidant defenses to maintain muscle health.
  • Ingredients matter – We use only pure, high-quality ingredients. The majority of our products are non-GMO and gluten-free—and a Certificate of Analysis is available for every one.
  • Live your healthiest life - For over 40 years, we’ve been developing advanced, effective formulas made with the highest standards and based on the latest scientific findings. We believe the answers to a healthier, richer life are within reach, and that rigorous scientific research is the path to get us there. That’s why so many of our nutritional formulas are designed using specific ingredients and amounts based on scientific studies.
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4.679775280898877 stars out of 5, based on 1604 seller reviews(4.7)
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Customer ratings & reviews

4.7 out of 5 stars
stars
92 ratings78 reviews
How item rating is calculated
  1. 5 stars85% (78)
  2. 4 stars12% (11)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star3% (3)

Reviews summary

Pros

  • : Made with reliable and quality materials.
  • : Helps with exercise recovery after workouts.
  • : Helps maintain a healthy physique.
  • : Offers affordable options.
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Showing 1-3 of 78 reviews

Jun 24, 2019
ZAREENA
5 out of 5 stars review

Seller Verified Purchase

Wonderful

Have been using this for years. I know when I have forgotten to take it because it makes a huge difference. [This review was collected as part of a promotion.]

Review from lifeextension.com
Helpful?3CWPCB24YB4031161944
Jul 2, 2020
Kitty
5 out of 5 stars review

Seller Verified Purchase

Good boost

I enjoy this product as an addition to my immune health. No negative to report. [This review was collected as part of a promotion.]

Review from lifeextension.com
Helpful?3CWPCB24YB4031161944
Oct 24, 2025
Steve
5 out of 5 stars review

Seller Verified Purchase

Best by far!

The product arrived quickly and was exactly as described. High-quality material, works perfectly, and the seller packed it carefully.

Review from Life Extension
Helpful?3CWPCB24YB4031161944