Affiliate disclosure: We sell VigRX Nitric Oxide through our SellHealth affiliate link to its maker's official storefront, and earn a commission if you buy through it. Our full review scores the product 5.5/10. This page answers the questions buyers ask about it, from the maker's own documents — its brand page, its dedicated storefront and its retail store — and the documents disagree with each other often enough that the disagreements are part of the answers. The headline facts: a patented two-amino-acid blend whose maker publishes no dose for it anywhere, directions that exist on only one of the maker's three pages, and a blood-pressure-relevant product with no blood-pressure warning on any of them.
Quick Answer: Does VigRX Nitric Oxide Work?
What it is: a daily tablet formula from Leading Edge Health (VigRX brand), built on a single patented blend — Velox®, L-citrulline plus L-arginine — positioned as a blood-flow booster for erection quality, sex drive, gym pumps, stamina and recovery. Does it work? The two amino acids are genuinely the right ones for nitric oxide, but the maker claims no trial of the finished product, cites one ingredient-level study (double-blind, 41 participants, L-citrulline, exercise recovery — dose, authors and journal unpublished), and publishes no amount for the blend, so whether a serving reaches the roughly 1.2 g + 1.2 g level the blend's own supplier specification calls effective cannot be verified. How long: the maker's storefront says energy and workout effects within the first week or two, sexual benefits over several weeks of daily use. Price and guarantee: $59 for one month (MSRP $69), with the full pack ladder published on the storefront, under a 67-day money-back guarantee.
What Is Actually in It?
One blend, two amino acids, no numbers. Velox® — described by the maker as a patented, pharmaceutical-grade blend — contains L-citrulline, which the body converts to L-arginine, which converts to nitric oxide, the vessel-relaxing messenger. The maker says taking both together produces "significantly more nitric oxide" than either alone, a combination claim it asserts without citing a study for it. That is the entire published formula. No amount is given for the blend or for either amino acid on any maker page, and no Supplement Facts panel is reproduced anywhere in the maker's material; the tablet count per bottle is likewise not published as text — the packs are labelled only by month supply. For calibration only: Velox® is Kyowa Hakko's blend, and the supplier's own published specification puts the effective dose at a minimum of about 1.2 g of its L-citrulline plus 1.2 g of its L-arginine at a 1:1 ratio. Whether this product meets its own ingredient's specification is, from the maker's pages, unknowable. Third-party sites fill the silence with invented figures — 3,000 mg servings, added beetroot, pomegranate, horny goat weed, two capsules daily — none of which appears on the maker's pages, and none of which we repeat as fact.
How Do I Take It — and Why Does Only One Page Say?
The only directions the maker publishes anywhere are on its official storefront: take 3 tablets in the morning with water on an empty stomach, daily, at the same time each morning, and do not exceed the recommended dose. The brand page and the maker's retail store — the pages a buyer reads for formula and evidence — publish no dose, no format and no bottle contents at all; the brand FAQ says only that the product must be taken daily to feel the benefits. We follow the storefront, as the only maker source that answers the question. A buyer comparing pages will also find the product under three names — "Nitric Oxide Support" on the brand store, "VigRX Nitric Oxide" on the retail store, "VigRX Nitric Oxide Support" on the dedicated storefront. Same product, three labels; the inconsistency is the maker's, and our review notes it.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Has It Been Clinically Tested?
No trial of the finished VigRX Nitric Oxide formula is claimed anywhere on the maker's pages. The evidence file, exactly as published: one human study cited for an ingredient — a double-blind study of 41 participants given L-citrulline around intense anaerobic exercise, reporting faster recovery and less muscle soreness; the maker publishes neither the dose used nor the authors, journal or year, and the study concerns exercise, not erections. A mechanism item on the retail store — a Shiga University pharmacology study establishing that nitric oxide triggers the penile blood flow behind erection — which is physiology, not a supplementation trial. And historical framing: nitric oxide's 1992 "Molecule of the Year" honour and the 1998 Nobel Prize for its discovery, which establish that the molecule matters, not that this product works. (The brand page manages to muddle those two dates together in one section.) The maker's remaining quantitative claim — that "some studies say" men in their 40s produce 50% less nitric oxide than teenagers — is attached to no identified study. Our evidence score: 5.0/10.
How Much Does It Cost?
This is, credit where due, the best-documented part of the product. The official storefront publishes the full ladder: 1 month $59.00 (retail $69.00); 3 months $159.00 ($53.00 per bottle); 6 months $299.00 ($50.00 per bottle); 12 months $549.00 ($46.00 per bottle) — with free continental USA shipping shown on the packages and interest-free instalment payments offered. The brand page and retail store print only the single-bottle price and urge upgrading to "3 bottles or more" without stating totals; the storefront figures govern. The guarantee is the maker's standard 67 days: return the empty containers for a refund of the purchase price, with the detailed terms (published on the maker's retail store) excluding shipping, requiring returns to be received within 67 days of delivery with no exceptions, limiting multi-bottle refunds to the first two opened containers plus unopened ones, and allowing one refund per customer. Against the maker's own several-weeks timeline, a one-month bottle plus a prompt start fits the window; set the decision point around day 60.
Is It Safe? The Missing Warnings Section
The maker's complete published safety position: the brand page FAQ states "No side-effects have been reported"; the retail store calls the product all-natural and safe for long-term use; the storefront adds one generic line advising readers with a health condition or medication to consult a healthcare provider. That is all. Nowhere on any maker page is there a warning about blood pressure, heart conditions, or interactions with nitrates, blood-pressure medication, heart medication or PDE5 inhibitors — precisely the interactions that matter for a vasodilating product whose maker simultaneously lists healthy blood pressure among its benefits. We report the "no side effects" sentence as the maker's claim, not as a finding: supplements undergo no drug-interaction trials, and this maker publishes no warnings section in which a caution could appear. Our guidance, offered because the maker's paperwork omits it: if you take any medication on that list, ask your doctor or pharmacist before starting — and our safety sub-score of 4.0/10 is what this silence costs the product.
Frequently Asked Questions
How much L-arginine and L-citrulline do I get per day?
Nobody can tell you from the maker's material: no amount is published for the blend or either amino acid, and no Supplement Facts panel appears on any maker page. The blend supplier's specification puts the effective level at about 1.2 g of each; whether this product reaches it is unverifiable.
Is VigRX Nitric Oxide the same as VigRX Plus?
No. They are different products from the same brand family. The maker's storefront positions this one as Step 1 — the "blood flow layer" — of a VigRX routine, taken alongside VigRX Plus and other products aimed at different layers. Our review of the flagship is on the VigRX Plus page.
Does it contain caffeine or stimulants?
The maker's retail store describes the formula as all-natural with "no fillers, stimulants, or synthetic ingredients." The published formula is the Velox® amino-acid blend only.
How long does one bottle last?
The packs are sold by month supply (1 / 3 / 6 / 12 months) at 3 tablets daily per the storefront directions; the tablet count per bottle is not published as text on the maker's pages, so "one month" is the maker's own unit, taken at face value.
What if it doesn't work for me?
The 67-day money-back guarantee covers empty-container returns under the detailed terms above — received within 67 days of delivery, shipping excluded, one refund per customer.
Our Verdict: 5.5/10, and Why
Our Score: 5.5/10 — Ingredients 5.0 · Evidence 5.0 · Maker credibility 8.0 · Safety 4.0 · Value 5.0. VigRX Nitric Oxide pairs the two right amino acids in a real patented blend, publishes a full price ladder, and backs it with a written guarantee — then withholds the dose that decides whether the blend can work, cites a single exercise study without its dose or source, and prints no interaction warning for the medicated men most likely to buy it. The formula may be perfectly adequate; its paperwork never lets a buyer find out. Men who want the blood-flow layer with its dose printed should compare fully disclosed citrulline/arginine products before spending — and anyone on blood-pressure, nitrate, heart or PDE5 medication should treat the maker's silence as a stop sign, not a green light.
Disclaimer: This article is for general information only and is not medical advice. Always consult a qualified healthcare professional before starting any supplement, especially if you have a medical condition or take prescription medication.
Last reviewed: October 2026
