Tried & Graded

BloodFlow-7: 230% more nitric oxide?

We could not find the study behind the number.

Juvenon’s BloodFlow-7 is a nitric oxide supplement marketed to men over 50, with a figure of “230%” and a promise of more focus. Short answer: we found no published trial of BloodFlow-7, and could not find the study behind the 230% on PubMed. A nitric oxide marker, even if it rose, is not a measure of focus or stamina.

Related: VINIA, which does have a blood-flow trial

How the evidence flows

Flowchart for this page: each claim, the studies that tested it and what they found, and the grade that follows. The same studies and grades are listed in full below.

Each claim (middle), the studies that tested it (left) — green found it, red found nothing — and the grade they add up to (right). Drawn from the same records as the grades below. Tap to open full size.

Juvenon BloodFlow-7 (nitric oxide) · evidence checked 2026-10-26

What the research shows

Grades are calculated from the studies listed, by fixed rules.

  • BloodFlow-7 boosts nitric oxide by 230% and sharpens focus by sending more blood to the brainNo real evidence
    The ad said
    “Many N.O. boosters rely on single-ingredient formulas that the body breaks down in less than an hour. BloodFlow-7® is designed to overcome this by targeting three distinct pathways…”

    Juvenon · Facebook ad, seen Oct 2026

    The ad said
    “It’s a biological fact: By the time a man reaches 50, his natural production of Nitric Oxide can drop by nearly half. When that production slows down, you feel it. Your stamina dips, your energy…”

    Juvenon · Facebook ad, seen Oct 2026

    We could not find the study behind “230%” on PubMed, or any trial of BloodFlow-7 for blood flow, focus or stamina. A rise in a nitric oxide marker, if shown, would still not be a measure of focus.