Question
Is L-arginine legit?
In context of L-arginine·Mixed evidence58/100
In our editorial model, L-arginine maps to a Mixed evidence verdict at 58/100 overall (evidence 54/100, safety 70/100, hype gap 58/100). Nitric oxide precursor amino acid; oral bioavailability limits simple "pump" narratives versus citrulline in many users.
Full ingredient file
This page is a short answer. Mechanisms, dosing notes, sources, and the rest of the verdict live on the hub for L-arginine.
Open L-arginine verdictOther questions on L-arginine
A few more focused pages for the same ingredient (we keep lists short on purpose).