Micro Ingredients Nitric Oxide Booster targets blood flow and circulation with 2,400mg of **L-arginine** per 3-tablet serving, which clears the 2,000mg clinical minimum studied for cardiovascular benefit. The "3,600mg" on the label is the two amino acids added together, not a single dose — and the **L-citrulline** side is where it falls short. At 1,200mg you're getting about 40% of the 3,000mg minimum that nitric-oxide and blood-flow research relies on.

L-citrulline is actually the more reliable route to nitric oxide, since your body converts it into arginine and it raises blood arginine levels more steadily, which is why the two are usually paired. That pairing works in your favor for the arginine you're getting here, but at this dose the citrulline isn't high enough to pull real weight on its own.

For everyday circulation support, the arginine does genuine work at the label's 3-tablet serving. If your goal is an exercise pump or endurance, though, you'd need to roughly double the citrulline to reach the studied range, so this leans more toward general blood-flow support than performance.