If you're after better blood flow, bigger pumps, or less fatigue during training, this gives you 3g of pure **L-Citrulline** per scoop — right at the bottom of the 3–6g range clinical research uses to raise nitric oxide and support endurance. Because it's straight L-citrulline rather than citrulline malate, the full 3g is active, so one scoop puts you at the effective floor without the larger doses malate blends require.

Citrulline converts to arginine in your kidneys and lifts nitric oxide more reliably than taking arginine directly, which is why it earns its heart and blood-flow relevance. The Kyowa-grade powder is high purity with nothing else in the tub.

To reach the stronger end of the research — more noticeable pumps and endurance — you'd take two scoops for 6g. One real caution: don't pair it with vasodilating or blood-pressure medications, since its nitric-oxide effect can stack with them.