For blood flow and cardiovascular support, **L-Arginine** needs to be dosed between 2,000–6,000 mg daily based on clinical research. This product gives you 1,000 mg per tablet (as L-Arginine HCl), which means you'd need at least two tablets to reach the minimum studied dose for nitric oxide and circulation benefits.

The hydrochloride form is standard and well-absorbed, so nothing about the form is holding you back — the limiting factor is purely the per-serving dose. If you're comfortable taking 2–3 tablets, you can reach the 2,000–3,000 mg range where research starts to show effects on blood flow and exercise performance.

One thing to keep in mind: at a single tablet, you're sitting at 50% of the minimum clinical dose. If your goal is cardiovascular support or workout performance, plan on a multi-tablet serving to get meaningful results.