Heart of Steel: 10-in-1 Metabolic Maximizer Nitric Oxide Supplement, Blood Pressure Support, L Arginine, L Citrulline Natural Pre-Workout: Energy Management 120 Count
$59.99
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From the brand
Welcome to Formulation Factory—where mediocrity ends and excellence begins.
As 2025’s boldest supplement brand, we craft stacked formulas for alpha men & women who refuse to settle. Unapologetic and scientifically perfected, our products fuel your body and mind to conquer any challenge.
Join a community of relentless achievers—men and women who redefine limits and demand transparency in every capsule. Greatness isn’t given; it’s forged.
How did we get our start?
After a near-death accident left our founder battling PTSD and depression, he created life-changing supplements on his countertop. Word-of-mouth success then sparked our birth.
What makes our products unique?
Cutting-edge tech + expertise = transformative, science-backed botanical supplements. Leveraging 2025’s innovation for life-changing results.
What problem are we solving?
Many brands hide behind misleading proprietary blends, but we prioritize transparency, crafting science-backed, family-trusted products built for US—because you deserve to know what you’re taking.
Launched April 2024
Launched October 2024
Launched January 2025
Launched March 2025
Package Dimensions : 3.11 x 2.68 x 2.6 inches; 4.66 ounces
Date First Available : October 16, 2024
Manufacturer : Formulation Factory
ASIN : B0DK61GRD2
Country of Origin : USA
[Maximize Blood Flow and Performance] Unlock your inner strength with Heart of Steel, a nitric oxide booster crafted with L-Citrulline, L-Arginine, and Ginseng. This pre-workout supplement for men enhances blood flow, energy, and endurance, making it the ideal nitric oxide pre-workout for men for achieving your fitness goals
[Heart Health & Blood Pressure Support] Our unique blend of L-Arginine, CoQ10, and Resveratrol supports cardiovascular health and helps maintain healthy blood pressure. This nitric oxide supplement helps improve circulation, making it a natural blood pressure reducer and heart health supplement
[Energy and Stamina Boost] Get a natural boost without caffeine. Heart of Steel combines powerful energy supplements like Ginseng and Rhodiola to enhance focus and endurance. Whether you’re looking for a natural pre-workout or an energy supplement for men, this formula helps you stay energized throughout the day
[Muscle Recovery & Full-Body Resilience] Designed to accelerate muscle recovery, reduce soreness, and protect against oxidative stress, Heart of Steel delivers L-Carnitine, Ginkgo Biloba, and Quercetin. This muscle recovery supplement helps you get back to peak condition faster, ensuring full-body resilience after every workout
[Naturally Effective] Crafted in a GMP-registered facility, Heart of Steel combines only clinically studied natural ingredients like L-Citrulline, Ginseng, and CoQ10. This blood flow supplement for men offers a safe, filler-free approach to improving performance, cardiovascular health, nitric oxide production, and overall well-being
[Customer Satisfaction Commitment] Contact Us Anytime! Your happiness is our priority. If you have any concerns, reach out via Amazon messages—we’re here to assist. We value your feedback and are dedicated to providing top-notch support!
Customers say
Customers find this pre-workout supplement effective, reporting noticeable energy boosts and improved stamina during workouts. The product contains clinically tested ingredients and delivers on its claims, with one customer noting it provides long-lasting energy throughout the day without caffeine. Customers appreciate its focus-enhancing properties, improved mental clarity, and reduced post-workout soreness, while also finding it easy to swallow. They consider it good value for money, with one mentioning it covers multiple needs in one bottle.
AI-generated from the text of customer reviews
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8 reviews for Heart of Steel: 10-in-1 Metabolic Maximizer Nitric Oxide Supplement, Blood Pressure Support, L Arginine, L Citrulline Natural Pre-Workout: Energy Management 120 Count
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marknapril –
Impressive Results â Boosted My Energy and Focus!
Iâve been using Heart of Steel capsules for about three weeks now, and Iâm genuinely impressed. I initially bought them looking for a natural way to enhance my energy levels and focus during workouts and busy workdaysâand theyâve definitely delivered.What I love most is that the energy boost feels cleanâno jittery crashes or weird side effects. Iâve noticed better endurance during my gym sessions, and I also feel more mentally sharp throughout the day. Itâs been a game changer for productivity.The capsules are easy to take and donât have any weird aftertaste. Also, I appreciate that the ingredients are transparent and seem to be of high quality. Iâll definitely be ordering another bottle once I run out.Highly recommend if youâre looking for a supplement to help you push through both physically and mentally.
Mj –
Helps a lot
One of the key benefits of this product is its multi-faceted approach to energy management and blood pressure support. It hsa increased energy levels. This product has helped with endurance during workouts, which can be attributed to the effective formulation of ingredients aimed at maximizing metabolic performance.In terms of taste and ease of use, the capsules are easy to swallow, making it convenient for anyone who prefers not to deal with powders or shakes. Overall, Heart of Steel appears to be a solid choice for anyone seeking a reliable pre-workout supplement that also supports cardiovascular health.Very helpful for my husband!
Tanik –
Best Supplement ever
Iâve been using the Heart of Steel Nitric Oxide supplement for a few weeks now, and Iâm honestly impressed. I noticed a real difference in my energy levels during workouts, more endurance, better pumps, and quicker recovery afterward. Itâs great that it doesnât have any caffeine, so no jitters or crashes.It also seems to help with circulation, which is a nice bonus. I feel more focused and just overall more energized throughout the day. Definitely a solid choice if youâre looking to boost performance and support your heart health at the same time. 10/10 highly recommend.
Dede –
An Easy Yes for Energy, Blood Pressure, and Wellness
So Iâve been using Heart of Steel: 10-in-1 Metabolic Maximizer for a few weeks now, and let me just say itâs giving exactly what itâs supposed to give. The quality of this supplement is top tier. The ingredients are clean, and I really love that it has L-Arginine and L-Citrulline for that natural nitric oxide boost.I mainly grabbed it for the energy and metabolism support (because mom life is real), and itâs been a game changer. I donât feel jittery like Iâve had too much caffeine, just naturally energized and more focused throughout the day. Iâve also noticed my blood pressureâs been more stable, which is huge for me.Honestly, if youâre trying to take your health seriously and want something that supports energy, circulation, and overall wellness, this is it. Itâs definitely earned a permanent spot in my daily routine.
Ana Pidghirnii –
High quality and real results
Iâm very pleased with this supplement, I have been using many supplements before this one with similar ingredients and I can tell on my body that the quality of this one is much much higher, and I actually am energetic throughout the day and my mind is sharper, Iâm glad I gave it a try and Iâll continue to use it, totally worth it.
Zinaida Dentelinova –
Very good!
Heart of Steel is, without a doubt, the best supplement Iâve ever tried! This product truly lives up to its name, providing a powerful energy boost that helps not only during workouts but also in daily life.From the very first days of taking it, I noticed a difference: my endurance improved, it became easier to stay focused, and fatigue no longer hits me in the middle of the day. No matter the activityârunning, hiking, or strength trainingâHeart of Steel supports my body, allowing me to push my limits without any sudden energy crashes.Another huge plus is its ease of use. The supplement fits seamlessly into my daily routine, and the sleek, practical packaging only reinforces its quality. The formula is well thought out, and you can feel the benefits with every dose.If youâre looking for a product that truly works, helps you reach new heights in your workouts, and enhances your overall well-being, Heart of Steel is your best choice! I highly recommend it to anyone who wants to stay energized and unlock their full potential!
Staceyann Colquhoun –
Pre-workout
This product really gives a boost ! I donât really workout but I do hair and it gives me so much energy!! My brother also took it, he does kick boxing and works out everyday and it works well for him as well
Eva F –
Awesome daily supplement!
This supplement is awesome! It enhances energy, focus levels, and blood flow and did not cause me any jitters. I was skeptical but then realized after a few days of taking it the difference in how I felt energy wise. The pills are easy to swallow and itâs worth every penny you spend to function properly on a daily basis