Heart of Steel Research
HEART OF STEEL
The Ultimate Cardiovascular & Performance Formula
Stronger circulation. Superior endurance. Unstoppable energy. Your heart is the engine that powers your body, and if you want to perform at your highest level—whether in the gym, at work, or in life—you need to optimize blood flow, oxygen delivery, and cardiovascular efficiency.
HEART OF STEEL is a clinically backed formula designed to enhance nitric oxide production, improve heart function, and supercharge endurance. Whether you’re an athlete looking for explosive stamina and pump-enhancing blood flow or someone who wants long-term heart health and vitality, this powerhouse formula is built for peak performance.
L-Citrulline – 500 mg
L-Citrulline is a key nitric oxide (NO) booster, responsible for expanding blood vessels, increasing circulation, and enhancing oxygen delivery throughout the body. Unlike other NO precursors, L-Citrulline is superior to L-Arginine in raising NO levels, leading to stronger pumps, better endurance, and faster muscle recovery. Studies show that L-Citrulline enhances exercise performance, reduces muscle fatigue, and improves cardiovascular efficiency, making it a must-have for athletes and high performers looking to maximize stamina and blood flow.
L-Arginine – 200 mg
L-Arginine is another essential precursor to nitric oxide, working alongside L-Citrulline to widen blood vessels, lower blood pressure, and support cardiovascular function. It’s been shown to improve blood circulation, enhance workout endurance, and support muscle recovery by increasing nutrient and oxygen delivery to tissues. L-Arginine also plays a role in reducing arterial stiffness and improving vascular elasticity, making it an excellent ingredient for overall heart health and peak athletic performance.
CoQ10 – 100 mg
CoQ10 is one of the most critical compounds for heart health, mitochondrial energy production, and endurance. It fuels the mitochondria, the powerhouses of your cells, ensuring that your heart and muscles generate maximum energy output. Research shows that CoQ10 improves cardiovascular function, enhances blood flow, and protects against oxidative damage to heart cells. It’s especially beneficial for athletes, individuals with high-performance lifestyles, and anyone looking to optimize their cardiovascular efficiency.
Resveratrol – 100 mg
Resveratrol is a powerful polyphenol known for its ability to protect the heart, enhance circulation, and fight oxidative stress. Found in red wine, resveratrol has been shown to increase nitric oxide levels, improve vascular function, and support healthy cholesterol levels. It also has strong anti-inflammatory properties, which help protect blood vessels from damage, reducing the risk of heart disease while promoting long-term cardiovascular health.
Ginseng – 100 mg
Ginseng is a legendary adaptogenic herb that enhances physical and mental stamina, reduces fatigue, and improves cardiovascular function. It has been used for centuries to support blood circulation, enhance nitric oxide production, and optimize oxygen delivery to muscles and organs. Studies show that ginseng boosts endurance, enhances cognitive function, and helps the body adapt to physical and mental stress, making it a powerful ingredient for high-performance individuals.
Ginkgo Biloba – 100 mg
Ginkgo Biloba is a brain-boosting and circulation-enhancing powerhouse. It works by improving blood flow to the brain and body, enhancing oxygenation and nutrient delivery to muscles and organs. Ginkgo has been shown to reduce arterial stiffness, improve vascular function, and support overall cognitive clarity. Whether you’re looking to enhance endurance, boost focus, or optimize cardiovascular efficiency, Ginkgo Biloba is a critical component in long-term circulatory and heart health.
Rhodiola Rosea – 100 mg
Rhodiola Rosea is an elite adaptogen that enhances endurance, stamina, and cardiovascular function. It works by reducing stress-induced cortisol spikes, preventing fatigue, and improving blood oxygenation during exercise. Studies show that Rhodiola enhances endurance performance, accelerates recovery, and supports optimal cardiovascular function under high physical demands. If you train hard and push your limits, Rhodiola ensures you recover faster and perform stronger.
Quercetin – 100 mg
Quercetin is a potent antioxidant that enhances cardiovascular health, fights inflammation, and improves blood vessel function. It helps to reduce oxidative stress, strengthen capillary integrity, and enhance nitric oxide production, leading to improved endurance, circulation, and heart function. Quercetin also plays a role in reducing blood pressure, improving cholesterol levels, and preventing arterial plaque buildup, making it a crucial ingredient for long-term cardiovascular optimization.
Forskolin – 100 mg
Forskolin is a highly effective metabolic and cardiovascular enhancer. It works by activating adenylate cyclase, which increases cyclic AMP (cAMP) levels in cells, leading to improved heart function and fat metabolism. Studies have shown that Forskolin supports healthy blood pressure, improves circulation, and enhances fat oxidation, making it a dual-benefit ingredient for cardiovascular health and body composition.
Capsaicin (Cayenne Extract) – 25 mg
Capsaicin is a powerful thermogenic compound that increases circulation, enhances metabolism, and supports fat loss. It works by activating TRPV1 receptors, which increase blood flow, promote vasodilation, and improve heart efficiency. Studies show that capsaicin can lower blood pressure, improve vascular function, and boost endurance by enhancing oxygen uptake. It also plays a role in fat oxidation and metabolic support, making it an essential addition to a cardiovascular and performance formula.
Why HEART OF STEEL Delivers Superior Cardiovascular Performance
Most heart and circulation supplements are either weak or one-dimensional, failing to address the full spectrum of cardiovascular optimization. HEART OF STEEL is engineered to improve nitric oxide production, enhance endurance, and optimize heart function, ensuring you operate at peak capacity.
✔ Maximizes Blood Flow – Boosts nitric oxide for stronger circulation and oxygen delivery
✔ Enhances Endurance – Increases stamina, reduces fatigue, and supports peak athletic performance
✔ Protects the Heart – Strengthens cardiovascular function and prevents oxidative stress
✔ Supports Energy & Recovery – Fuels mitochondria for sustained energy and faster recovery
✔ Optimizes Metabolism – Enhances fat oxidation and thermogenesis for peak efficiency
HEART OF STEEL isn’t just a supplement—it’s your body’s ultimate performance engine. Whether you’re training at the highest level, looking for unstoppable endurance, or prioritizing long-term heart health, this formula delivers what others can’t.
Peer-Reviewed Scientific Research Studies
L-Citrulline
L-Citrulline Supplementation: Impact on Cardiometabolic Health (2018) This comprehensive review examines how L-Citrulline supplementation can lower blood pressure and provide endothelial protection in adults with pre-hypertension or hypertension. It also explores preliminary evidence of benefits to muscle and metabolic health in older populations.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6073798/
Effects of Citrulline Supplementation on Exercise Performance in Humans: A Review of the Current Literature" (2020) This article summarizes the theoretical rationale behind L-Citrulline supplementation and reviews scientific evidence assessing its potential ergogenic value on vascular function and exercise performance.
https://pubmed.ncbi.nlm.nih.gov/31977835/
Effects of L-Citrulline Supplementation on Nitric Oxide and Antioxidant Markers After High-Intensity Interval Exercise in Young Men: A Randomized Controlled Trial (2021)This study investigates the impact of acute L-Citrulline supplementation on antioxidant responses following high-intensity interval exercise, finding improvements in antioxidant markers among young men. https://pubmed.ncbi.nlm.nih.gov/34134794/
Does L-Citrulline Supplementation Improve Exercise Blood Flow in Older Adults? (2017) This research explores the effects of short-term L-Citrulline supplementation on muscle blood flow during exercise in older adults, noting modest improvements in older men. https://pubmed.ncbi.nlm.nih.gov/28940638/
L-Citrulline Supplementation and Exercise in the Management of Sarcopenia (2021) This study examines the combined effects of L-Citrulline supplementation and physical activity on muscle function in older adults, observing improvements in walking speed and tendencies toward increased strength and endurance. https://pubmed.ncbi.nlm.nih.gov/34579009/
Does L-citrulline benefit physical function in physically active older people?
L-citrulline is a precursor to nitric oxide and is commonly used as a supplement to increase blood flow to muscles and improve physical performance during exercise. Because aging is often accompanied by a reduction in muscle mass and physical function, these researchers asked whether L-citrulline could benefit physical function among older people engaged in regular physical activity. https://examine.com/research-feed/study/9Lbqr1/
L-Arginine
L-Arginine Supplementation in Peripheral Arterial Disease: No Benefit and Possible Harm: his study examines the effects of L-Arginine supplementation in patients with peripheral arterial disease, providing insights into its efficacy and safety. Link: https://pubmed.ncbi.nlm.nih.gov/16418406/
L-Arginine Therapy in Acute Myocardial Infarction: The VINTAGE MI Randomized Clinical Trial: his clinical trial investigates the impact of L-Arginine therapy on patients who have experienced an acute myocardial infarction. Link: https://pubmed.ncbi.nlm.nih.gov/16418406/
Effects of L-Arginine on Blood Pressure: A Systematic Review and Meta-Analysis: his meta-analysis evaluates the influence of L-Arginine supplementation on blood pressure levels in various populations. Link: https://pubmed.ncbi.nlm.nih.gov/19496298/
L-Arginine and Antioxidant Supplementation in Peripheral Artery Disease: The Nitric Oxide Mechanism: his research explores how L-Arginine and antioxidants may benefit individuals with peripheral artery disease through nitric oxide pathways. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
L-Arginine Supplementation in the Treatment of Pre-Eclampsia: A Meta-Analysis of Randomized Controlled Trials: his meta-analysis assesses the effectiveness of L-Arginine supplementation in managing pre-eclampsia in pregnant women. Link: https://pubmed.ncbi.nlm.nih.gov/23816520/
CoQ10 (Coenzyme Q10)
CoQ10 and Resveratrol Effects to Ameliorate Age-Related Mitochondrial Dysfunction: his review discusses how CoQ10 supplementation can improve mitochondrial functionality during aging. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9611139/
Coenzyme Q10 as a Treatment for Heart Failure: A Review of the Literature: his article reviews the potential benefits of CoQ10 supplementation in patients with heart failure. Link: https://pubmed.ncbi.nlm.nih.gov/20648905/
Coenzyme Q10 and Statin-Induced Mitochondrial Dysfunction: his study examines the role of CoQ10 in mitigating mitochondrial dysfunction caused by statin medications. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
The Effect of Coenzyme Q10 on Morbidity and Mortality in Chronic Heart Failure: Results from Q-SYMBIO: his randomized controlled trial investigates the impact of CoQ10 supplementation on outcomes in chronic heart failure patients. Link: https://pubmed.ncbi.nlm.nih.gov/25282031/
Coenzyme Q10 Supplementation and Heart Failure: A Meta-Analysis of Randomized Controlled Trials: his meta-analysis evaluates the efficacy of CoQ10 supplementation in improving symptoms and survival in heart failure patients. Link: https://pubmed.ncbi.nlm.nih.gov/28741711/
Resveratrol
Health Benefits of Resveratrol: his article provides an overview of the various health benefits associated with resveratrol, including its antioxidant and anti-inflammatory properties. Link: https://www.health.com/resveratrol-8662308
Resveratrol as an Anti-Aging Agent: Mechanisms and Clinical Implications: his review explores the potential of resveratrol as an anti-aging compound and its mechanisms of action. Link: https://pubmed.ncbi.nlm.nih.gov/23768282/
Resveratrol and Cardiovascular Health: his study examines the effects of resveratrol on cardiovascular health, including its role in blood pressure regulation and endothelial function. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
Resveratrol and Cancer: Focus on In Vivo Evidence: his article reviews the in vivo evidence supporting resveratrol's potential role in cancer prevention and therapy. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
Resveratrol Improves Mitochondrial Function and Protects Against Metabolic Disease: his research investigates how resveratrol enhances mitochondrial function and its implications for metabolic health. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
Ginseng
Ginseng for Health: A Systematic Review of the Evidence: his systematic review evaluates the health benefits of ginseng, including its effects on cognitive function and fatigue. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
Ginseng and Cardiovascular Risk Factors: A Systematic Review and Meta-Analysis: his meta-analysis examines the impact of ginseng supplementation on cardiovascular risk factors such as blood pressure and lipid profiles. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
Ginseng and Immune Function: A Systematic Review: his review explores the effects of ginseng on immune system modulation and its potential benefits in immune-related conditions. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
Ginseng and Diabetes: The Evidence from Randomized Controlled Trials: his article reviews the evidence from randomized controlled trials on the efficacy of ginseng in managing blood glucose levels in diabetic patients. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
Ginseng and Cancer: A Review of the Evidence: his study examines the potential anticancer properties of ginseng and its role in cancer prevention and treatment. Link: https://pubmed.ncbi.nlm.nih.gov/19451812/
Ginkgo Biloba
Ginkgo Biloba: A Treasure of Functional Phytochemicals with Multimedicinal Applications: his review highlights the diverse medicinal properties of Ginkgo biloba, including its anticancer, antidementia, antidiabetic, and antioxidant effects. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8901348/
Ginkgo Biloba in the Aging Process: A Narrative Review: his article discusses the potential benefits of Ginkgo biloba in age-related conditions such as neurodegenerative diseases, cardiovascular diseases, and cancer. Link: https://pubmed.ncbi.nlm.nih.gov/35326176/
Efficacy and Adverse Effects of Ginkgo Biloba for Cognitive Impairment and Dementia: A Systematic Review and Meta-Analysis: his meta-analysis evaluates the effectiveness of Ginkgo biloba extract (EGb761) in stabilizing or slowing cognitive decline in individuals with cognitive impairment and dementia. Link: https://pubmed.ncbi.nlm.nih.gov/25114079/
Ginkgo Biloba: Indications, Mechanisms, and Safety: his comprehensive review examines the various indications for Ginkgo biloba use, its mechanisms of action, and safety profile. Link: https://pubmed.ncbi.nlm.nih.gov/23538078/
A Systematic Review and Meta-Analysis of Ginkgo Biloba in Neuropsychiatric Disorders: From Ancient Tradition to Modern-Day Medicine: his study analyzes the efficacy of Ginkgo biloba in treating neuropsychiatric disorders, including its impact on cognitive function and activities of daily living in patients with dementia. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3679686/
Rhodiola Rosea
The Effectiveness of Rhodiola Rosea L. Preparations in Alleviating Various Aspects of Life-Stress Symptoms and Stress-Induced Conditions—Encouraging Clinical Evidence: his review summarizes clinical studies demonstrating the efficacy of Rhodiola rosea in reducing stress-induced fatigue and improving cognitive functions. Link: https://pubmed.ncbi.nlm.nih.gov/35745023/
Rhodiola Rosea as an Adaptogen to Enhance Exercise Performance: his article explores the potential of Rhodiola rosea to increase resistance to stress and improve overall resilience, which may enhance exercise performance. Link: https://pubmed.ncbi.nlm.nih.gov/37641937/
Effects of Rhodiola Rosea Supplementation on Exercise and Sport: A Systematic Review: his systematic review evaluates the impact of Rhodiola rosea supplementation on athletic performance, including its effects on muscle damage, antioxidant capacity, and perceived exertion. Link: https://pubmed.ncbi.nlm.nih.gov/35464040/
Rhodiola Rosea L.: An Herb with Anti-Stress, Anti-Aging, and Immunostimulating Properties: his review discusses the multiplex stress-protective activity of Rhodiola rosea, including its anti-aging, anti-inflammation, and immunostimulating effects. Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6208354/
Rhodiola Rosea for Physical and Mental Fatigue: A Systematic Review: his systematic review assesses the efficacy of Rhodiola rosea in alleviating physical and mental fatigue, highlighting its potential benefits in healthy populations and individuals with fatigue-related conditions. Link: https://pubmed.ncbi.nlm.nih.gov/22643043/
Quercetin
Quercetin: A Review of Its' Antioxidant Properties and Therapeutic Potential in Age-Related Diseases: his review examines the antioxidant properties of quercetin and its potential therapeutic applications in age-related diseases such as cardiovascular diseases and neurodegenerative disorders. Link: https://pubmed.ncbi.nlm.nih.gov/28925820/
Quercetin as an Antiviral Agent Inhibits Influenza A Virus (IAV) Entry: his study investigates the antiviral properties of quercetin, demonstrating its ability to inhibit the entry of Influenza A virus into host cells. Link: https://pubmed.ncbi.nlm.nih.gov/32061640/
Quercetin and Its Anti-Allergic Immune Response: his article explores the anti-allergic properties of quercetin, focusing on its role in modulating immune responses and reducing allergic symptoms. Link: https://pubmed.ncbi.nlm.nih.gov/28753949/
Quercetin: A Potential Natural Drug for Adjuvant Treatment of Rheumatoid Arthritis: his research highlights the anti-inflammatory effects of quercetin and its potential as a natural adjuvant therapy for rheumatoid arthritis. Link: https://pubmed.ncbi.nlm.nih.gov/29734131/
Quercetin: A Promising Treatment for the Common Cold: his study reviews the potential of quercetin as a treatment for the common cold, emphasizing its antiviral and anti-inflammatory properties. Link: https://pubmed.ncbi.nlm.nih.gov/28743099/