As an affiliate, we earn from qualifying purchases. Price may vary.
THORNE brings the THORNE - L-Glutamine - Amino Acid Supplement for Immune System & to your fitness arsenal — here's what sets it apart.
For those who train hard and need to bounce back faster, glutamine is a smart addition.
THORNE's L-glutamine supplement supports gut health, immune function, and post-workout muscle recovery.
NSF Certified for Sport — tested for banned substances and label accuracy, making it a trusted choice for competitive athletes.
A practical addition to your daily wellness routine.
Suitable for vegetarians, so you can supplement confidently on a plant-inclusive diet.
Strikes a good balance between quality ingredients and reasonable pricing.
Typically ranges from $23–$28 — a competitive price point for the US market.
A well-rounded offering from THORNE that checks the right boxes for most users.
Track how the price has changed over the last 90 days on Amazon.com.
The brand behind this product — their story and what they stand for.
Physician-trusted supplement brand used by elite athletes and partnered with Mayo Clinic. NSF Certified for Sport.
Understand which fitness goals this product is best suited for.
General Health
A solid addition to your daily wellness routine, supporting overall nutrition and vitality.
A quick look at pricing, tier, and how it stacks up against the category average.
See how this product compares to similar options in its category.
| This Product | Clean Nutraceuticals | Double Wood Supplements | Horbäach | |
|---|---|---|---|---|
| Price | $25.30 | $9.95 | $9.95 | $9.99 |
| Per Serving | - | - | - | - |
| Servings | — | — | — | — |
| Lab Tested | ✓ | ✗ | ✓ | ✓ |
| Rating | 4.6 ★ | 4.5 ★ | 4.6 ★ | 4.7 ★ |
Common questions about this product — answered clearly and honestly.
Yes, this product is vegetarian-friendly. It does not contain any non-vegetarian ingredients.
Yes, this product has been lab tested by NSF Certified for Sport. Third-party lab testing verifies that the product contains what the label claims, giving you confidence in its quality and purity.
Clean Nutraceuticals
Clean Nutraceuticals Colostrum Supplement Capsules Probiotics Pills Prebiotics, L-Glutamine, Digestive Enzymes, Folate, Fiber, ACV, Turmeric, Apple Pectin and Turmeric Pills
Double Wood Supplements
L Glutamine Capsules - (1000mg Servings, 120 Capsules) Non-GMO, Gluten Free, Keto Safe, Vegan Friendly, Third Party Tested (for Endurance and Gut Health) by Double Wood
Horbäach
Horbaach L Glutamine Capsules 1000mg | 180 Powder Pills | Supplement for Women and Men | Pre Workout & Post Workout | Non-GMO & Gluten Free
Life Extension
Life Extension L-Glutamine, 500 mg L-glutamine, Amino Acid, Supports Muscle Health and Immune Health, Gluten-Free, Non-GMO, 100 Vegetarian Capsules
In-depth guides and articles to help you make a more informed choice.
