Natural Factors Micronized L-Glutamine Amino Acid 1000 mg

Our verdict

Natural Factors Micronized L-Glutamine Amino Acid 1000 mg works out to $0.14 per serving of l-glutamine, at 1000mg per serving in capsule form. That puts it below the median of the 36 l-glutamine products we can price per dose, where the typical serving costs $0.15, a Value Index of 1.1 where the median product is 1.0. One container lasts 180 days at the label dose of 1 serving a day, about $4.08 a month. Natural Factors appears in the USP public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.