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At 500 mg per capsule, this is the lighter-dose Natural Factors option, with 60 vegetarian caps to the bottle. The micronized, free-form glutamine is third-party tested and priced as an entry point into recovery support for those new to the amino acid.
Track how the price has changed over the last 90 days on Amazon.ca.
The brand behind this product — their story and what they stand for.
Natural Factors is primarily a vitamins-and-wellness brand here, with 13 products spanning vitamin D and K2, omega-3, creatine and its Whole Earth & Sea vegan protein and greens. Third-party testing backs a range that leans more general-health than gym-specific.
Understand which fitness goals this product is best suited for.
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 | NOW | Natural Factors | Sports Research | |
|---|---|---|---|---|
| Price | $14.99 | $15.59 | $18.99 | $20.95 |
| Per Serving | - | - | - | $0.35/serving |
| Servings | — | — | — | 60 |
| Lab Tested | ✓ | ✗ | ✓ | ✓ |
| Rating | 4.6 ★ | 4.5 ★ | 4.7 ★ | 4.6 ★ |
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 Third-party tested. Third-party lab testing verifies that the product contains what the label claims, giving you confidence in its quality and purity.
This product is available in Unflavoured. Flavour preferences are personal — chocolate and unflavoured tend to be the most versatile options.
NOW
NOW Supplements, L-Glutamine 500 mg, Nitrogen Transporter, Amino Acid, 120 Veg Capsules
Natural Factors
Natural Factors Micronized L Glutamine 1000mg, 60 Vegetarian Capsules
Sports Research
Sports Research® L-Glutamine Powder 5g, Unflavored (10.58oz)
Just Glow
Just Glow L-Glutamine Capsules 500mg, 250 Veg Capsules, 2,000mg Per Serving (4 Capsules), Free Form L Glutamine Supplement 60 Servings, Made in Canada
