L-Glutamine
L-glutamine is sold as a single amino acid, usually as an unflavoured powder at a 5 g serving, and less often in capsules that need several units to match one scoop. Because it is one compound at one dose, this is among the easiest categories on the site to compare directly.
That makes cost per serving the main variable, followed by whether the product is flavoured or plain and whether it is a standalone or part of a blend. Check servings per container rather than tub weight — scoop sizes differ.
Related: BCAAs, EAAs, and the full amino acids range.
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