Formulation Factory Heart of Steel Nitric Oxide Supplement - L Citrulline & L Arginine Blood Pressure Supplements - Natural Pre-Workout: Energy Management - 120 Capsules, 2 Month Supply

I’ve been using Heart of Steel for a few weeks now, and I can honestly say it’s a very solid supplement. What really stood out to me is the well-thought-out formula — it includes key ingredients like L-Citrulline, L-Arginine, CoQ10, Ginkgo Biloba, Panax Ginseng, Rhodiola, and Resveratrol. It’s great to have everything in one product instead of taking multiple separate supplements. The effects feel smooth and balanced, with no jitters, no crashes, and no unpleasant side effects. I’ve noticed improved daily energy levels and better endurance, especially during workouts and active days. It doesn’t feel like a harsh stimulant — just clean, steady support. Capsules are easy to swallow, and the quality feels premium. Overall, this is a well-rounded supplement for anyone looking to support circulation, energy, and overall performance. I would definitely repurchase and recommend it.

I’ve been using Heart of Steel (10-in-1 Metabolic Maximizer) from Formulation Factory for several weeks now, and I’m genuinely impressed.  ✅ What I Loved • Noticeable energy boost – Without feeling jittery, I get a clean, sustained lift in motivation and stamina throughout the day (or during workouts). • Improved circulation & “pump” – The nitric oxide blend (L-Citrulline, L-Arginine) delivers a real difference in blood flow and vascular “fullness.” • Supports heart health – Ingredients like CoQ10, resveratrol, and ginseng feel like a thoughtful touch for cardiovascular support.  • Recovery & reduced fatigue – After long or intense sessions, soreness seems to fade faster, and I bounce back quicker. • Clean formulation & transparency – No hidden proprietary blends. Everything is disclosed, and the product is GMP-certified, made in a USA facility.  ⚠️ Minor Considerations • You’ll need to take 4 capsules per day at full dose, which is a bit bulky.  • As always with supplements, consult your healthcare provider first, especially if you have blood pressure or heart conditions. • The product is a bit premium in price, but in my experience the performance justifies it. 💬 Final Thoughts Heart of Steel is not just another “booster” — it delivers on its promises and feels like a well-rounded, premium formula. If you’re after more vigor, better circulation, and real performance gains, I wholeheartedly recommend giving this one a shot.

I’m really impressed with Heart of Steel — it delivers exactly what it promises. The quality of the ingredients is noticeable right away, and the capsules are clean, easy to take, and gentle on the stomach. I’ve felt a big difference in my strength and daily energy. The blend of L-Citrulline, L-Arginine, Ginseng, Ginkgo Biloba, and other nutrient-rich ingredients works incredibly well together. It gives a steady boost without any crash. For the price, this is definitely great value for money. You get a strong, well-balanced formula that actually works. I also noticed an improvement in sleep quality — my body feels more relaxed at night, and I wake up feeling refreshed. Overall effectiveness is a solid 10/10. If you’re looking for a supplement that supports circulation, energy, recovery, and overall performance, this is one of the best I’ve tried. Highly recommended!

I’ve been using Heart of Steel for a while now and I’m really happy with how it feels. The energy is smooth and steady without jitters or crashes, which is very important for me. It works well both for workouts and busy days. I like the ingredient profile — it feels well thought out and balanced. I didn’t experience any stomach discomfort or nervousness while taking it. The packaging was secure, the instructions are clear, and the product feels high quality overall. A solid option if you’re looking for a supplement to support energy and endurance. I would definitely purchase again.

The Formulation Factory Heart of Steel: 10-in-1 Metabolic Maximizer is an outstanding supplement! I’ve tried several nitric oxide and heart health formulas, but none have worked as effectively as this one. I feel more energized throughout the day, my endurance has improved, and my overall circulation feels noticeably better. It also helps support healthy blood pressure without any negative side effects. The quality is top-notch, and for what you get, it’s an incredible value. Definitely a product I’ll keep using!

Game changer! I was really impressed with Heart of Steel. The capsules are easy to take and I noticed a solid boost in energy and focus throughout the day without any crash. It also helped give me that extra motivation for workouts. Great quality overall, feels clean and effective. Definitely worth the money if you’re looking for a reliable supplement.

I have been taking them for about 2 weeks now and i can right away feel a difference. These supplements have been very effective and helped me feel more awake and less anxious. These pills are very good quality, the texture is like a regular gel pill and very easy to swallow. The taste is not bad at all once you swallow it there’s no after taste. I definitely recommend. This is worth your money.

This product is amazing ! My mom had issues with blood pressure for a while now and this has completely regulated her blood pressure. You can tell that every capsule is made high quality. The ingredients work well together to help with energy, drive, and recovery. I finally don’t feel groggy waking up every day, or after my workouts. The crash has finally been cured! This product provides value for hard earned money and makes you feel the best you have in a while.