The six

One at a time

Circulation · 200 mg

L-Arginine

An amino acid the body converts toward nitric oxide, which supports healthy dilation of blood vessels and blood flow already within normal levels.

Circulation + energy · 200 mg

L-Arginine AKG 2:1

Arginine bound to alpha-ketoglutarate. The AKG half feeds cellular energy metabolism, so this one ingredient works on both fronts at once.

Circulation · 100 mg

L-Citrulline HCl

Converted by the kidneys into arginine, which is often a more efficient route to raising nitric oxide than taking arginine on its own.

Circulation + stamina · 100 mg

L-Citrulline Malate

Citrulline paired with malate, a compound involved in cellular energy production — supporting both blood flow and the stamina behind sustained focus.

Vasodilation · 7.5 mg NE

Niacin (Vitamin B3)

An essential B-vitamin with a well-documented natural vasodilating effect. At 47% of the daily value, this is a nutritional amount, not a high-dose flush protocol.

Endurance · 40 mg

Beta-Alanine

An amino acid associated with muscular and cellular endurance. It is the smallest amount on the label by a wide margin, and worth reading as a supporting role.

The panel

Supplement Facts, reproduced

Read it yourself rather than taking our word for it.

Ingredient	Role	Amount per capsule
L-Arginine	Circulation	200 mg
L-Arginine AKG 2:1	Circulation + energy	200 mg
L-Citrulline HCl	Circulation	100 mg
L-Citrulline Malate	Circulation + stamina	100 mg
Niacin (Vitamin B3)	Vasodilation	7.5 mg NE
Beta-Alanine	Endurance	40 mg
Calcium (as calcium carbonate)	—	18 mg
Hypromellose (vegetable capsule)	—	—
Vegetable stearate	—	—
Silicon dioxide	—	—

Serving size 1 capsule · 30 servings per container. Niacin is 47% of the daily value; calcium is 1.5%. Daily values are not established for the amino acids.

Reading it

What the amounts tell you

Total actives come to 640 mg of amino acids plus the niacin and a small amount of calcium from the carbonate. Arginine and arginine AKG carry the formula at 200 mg each; beta-alanine at 40 mg is a supporting note rather than a main line.

Publishing amounts is genuinely worth something. It lets you compare this against another bottle, and it lets you check any ingredient against the research behind it. Most products in this aisle make both impossible.

What it does not do is prove efficacy. An amount you can read is still an amount you have to judge, and these are modest ones.

The interaction worth taking seriously. This formula supports nitric-oxide-mediated blood flow. Blood pressure medication, nitrates and blood thinners all act on the same pathways. If you take any of them, or you live with a cardiovascular condition, speak to your doctor before the first capsule.

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