Amino acids
L-Arginine
Nitric oxide
Nitric oxide precursor; vasodilation, blood flow. Common dose 3–6 g/day.
How L-Arginine appears on labels
Supplement labels list L-Arginine under several names depending on the chemical form used. Any of these on an ingredients panel counts toward your L-Arginine intake:
- l-arginine
- arginine
Deep dive
For mechanism of action, dosing protocols, evidence grade, and interaction warnings on L-Arginine, see the full encyclopedia entry:
L-Arginine encyclopedia entry →Related amino acids
Track your full intake
Formulate's free desktop app aggregates L-Arginine (and ~40 other nutrients) across every supplement in your stack — flagging underdoses, overlaps, and upper-limit overshoots in one view.
Get the appMedical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Targets and upper limits are general adult reference values; individual needs vary by age, sex, pregnancy status, and clinical context.