Why the nitric oxide pathway matters for physical performance.

Physical responsiveness — erection quality, endurance, sensation, and the reliability of the body's response to desire — depends on blood flow to the right tissue at the right time. Nitric oxide (NO) is the primary signaling molecule that makes that happen.

When NO is produced in the endothelium (the inner lining of blood vessels), it triggers the smooth muscle surrounding the vessel to relax — widening the vessel and increasing blood flow. This is the mechanism behind pharmaceutical PDE5 inhibitors. It is also the mechanism that natural precursor supplementation supports — through a different, non-prescription pathway.

L-Arginine is the direct precursor to nitric oxide via the enzyme nitric oxide synthase. L-Citrulline is converted to L-Arginine in the kidneys and raises plasma L-Arginine levels more efficiently than supplemental L-Arginine alone — because it bypasses the gut enzyme (arginase) that breaks down L-Arginine before it reaches systemic circulation. The combination of both is more effective than either alone.

Why two forms of each amino acid.

L-Arginine base + L-Arginine AKG 2:1

L-Arginine base provides direct, immediate L-Arginine availability. L-Arginine AKG (Alpha-Ketoglutarate) is a modified form that is absorbed differently — AKG acts as a carrier that improves cellular uptake and supports the Krebs cycle, making it more effective for sustained physical performance. Together they provide both immediate and sustained L-Arginine delivery across the dosing window.

L-Citrulline HCL + L-Citrulline Malate

L-Citrulline HCL is the pure citrulline form — it converts to L-Arginine in the kidneys with high efficiency and raises plasma arginine levels more effectively than direct L-Arginine supplementation. L-Citrulline Malate combines citrulline with malic acid — the malate component supports ATP production and reduces lactic acid accumulation, adding an endurance and recovery dimension that pure citrulline alone doesn't provide.

How FlowMax™ fits the system.

FlowMax™ is the dedicated blood flow layer of the MG system. StoneBone™ provides the broad foundation — libido, stress resilience, and daily performance readiness, including L-Arginine at 250mg. FlowMax™ adds the focused, higher-dose nitric oxide and circulation protocol on top of that foundation. For men whose specific bottleneck is physical responsiveness and endurance, this is the right additional layer.

The science behind FlowMax™ — every ingredient, every dose.

FlowMax™ is built around the nitric oxide precursor pathway — the most direct natural route to improved blood flow and vascular dilation. Six disclosed ingredients. No hidden doses. Here is exactly what is in each serving and why.

Full ingredient breakdown — 6 active ingredients, all disclosed.

Vegan formula. 2 capsules daily · 60 capsules · 30-day supply · GMP-certified, FDA-registered facilities · Formulated in Switzerland · Made in the USA · Non-GMO · Third-party tested for purity and potency

FlowMax™ instructions.

FlowMax™ is designed for consistent daily use. The nitric oxide precursor mechanism builds with consistent supplementation — most men notice improved physical responsiveness and endurance within 1–2 weeks of daily use, with the full circulatory effect clearest at 30 days.

Standard dose: 2 capsules once daily

Take with a full glass of water. Morning or early afternoon works best — taking FlowMax™ with a meal can slightly reduce L-Arginine absorption. Avoid taking immediately before bed as the vasodilation effect is better utilized during active hours. Do not exceed 2 capsules per day.

Note on Beta Alanine tingling

FlowMax™ contains Beta Alanine at 80mg. Beta Alanine commonly causes a harmless tingling sensation (paresthesia) — typically in the face, hands, and feet — within 15–30 minutes of taking. This is not an allergic reaction and is not cause for concern. It is a normal physiological response to Beta Alanine and fades within 30–60 minutes. If you find it uncomfortable, taking with food reduces the intensity.

For best results

• Take consistently every day — the nitric oxide precursor effect builds with sustained supplementation
• Pairs with StoneBone™ — FlowMax™ adds dedicated blood flow focus on top of StoneBone's broader foundation
• Pairs with BlackHorn™ for occasion-specific support — FlowMax™ daily, BlackHorn™ before specific moments
• Stay well hydrated — adequate hydration supports nitric oxide production and vascular function

Medical disclaimer.

FlowMax™ is not intended for individuals under 18, or for pregnant or nursing individuals. If you are managing a cardiovascular condition, taking blood pressure medication, or have specific health concerns, consult your healthcare provider before use. Do not combine with pharmaceutical PDE5 inhibitors without medical guidance.

Ships from the USA. Delivered discreetly.

All orders ship from our US warehouse. Packaging is plain — no brand name or product name on the outside. We ship worldwide.

USA & North America

• Standard delivery (3–5 business days) — $8.90
• Express delivery (1–2 business days) — $14.90, or free for subscriptions after first order and on orders over $150

Europe

• Standard delivery (10–15 business days) — $8.90
• Express delivery (5–9 business days) — $14.90, or free for subscriptions and orders over $200

Rest of World

• Standard delivery (10–15 business days) — $12.90
• Express delivery (5–9 business days) — $19.90, or free for subscriptions and orders over $200

30-day money-back guarantee.

If you don't feel a meaningful improvement within 30 days of your first order, contact us for a full refund. No complicated process. No hold times. Applies to first-time purchasers on initial orders only — limit one per product per household.