Most cardiovascular supplements follow a predictable script: they throw in a single ingredient and call it a day. But your circulatory system isn't a single reaction, it’s a complex, interconnected system. To optimize blood flow, your body needs to make nitric oxide, keep vessels open, and protect the cells lining them. Miss a step, and the rest underperform.
Heart of Steel was built to address all three. Here is how the three-pillar approach works:
Pillar 1: Nitric Oxide Production (The Signal)
Nitric oxide (NO) signals blood vessels to relax and dilate, leading to better circulation, lower vascular resistance, and better pumps.
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L-Citrulline (1,000 mg): The most bioavailable precursor to L-Arginine and a clinically studied driver of NO.
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L-Arginine HCl (400 mg): The direct raw material your body uses to manufacture NO.
Pillar 2: Vasodilation & Circulation (The Flow)
Producing NO is only half the battle; keeping vessels open and blood moving efficiently is the other.
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Ginkgo Biloba (200 mg of 10:1 extract): Supports peripheral and cerebral (brain) circulation.
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Coleus Forskohlii (100 mg of 10% extract): Professionally used to support healthy vascular tone.
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Capsaicin (20 mg of 1% extract): Promotes peripheral blood flow and natural thermogenesis.
Pillar 3: Cardiovascular Protection (The Shield)
Blood vessels face constant oxidative stress. This often-overlooked pillar uses antioxidants to protect endothelial cells and support long-term heart health.
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CoQ10 (200 mg of 99% pure): Essential for mitochondrial energy and heart function.
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Resveratrol (200 mg of 98% extract): Highly studied for endothelial and antioxidant support.
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Quercetin Dihydrate (200 mg of 95% extract): A potent plant flavonoid associated with circulatory health.
Clean, Transparent, and Backed by Science
We don't believe in "fairy dusting" or hiding behind proprietary blends. What you see is exactly what you get:
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Total Transparency: Every single dose is clearly listed on the label. No artificial colors, no fillers.
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Premium Quality: Manufactured in an FDA-registered, GMP-certified facility and third-party tested for purity.
Who It’s For
Heart of Steel is a daily, foundational formula built for people who already train hard, eat well, and want a research-backed way to support their cardiovascular system. If you want a high-stimulant pre-workout, look elsewhere. If you want a formula built on how human circulation actually works, you're in the right place.