Formulation Factory Heart of Steel Nitric Oxide Supplement — 120 Capsules, L-Citrulline 1000mg & Circulation Support

Heart of Steel is a daily nitric oxide supplement in capsule form that combines L-citrulline 1000mg with L-arginine, CoQ10, resveratrol and adaptogens to support healthy blood flow and everyday stamina.

This formula from Formulation Factory is designed as an all-in-one circulation and vitality supplement for active adults. Rather than a single-ingredient powder, Heart of Steel packs ten complementary ingredients into an easy capsule routine aimed at promoting nitric oxide production, vascular support, and energy for workouts, busy days, and recovery. The product comes as 120 capsules so you can maintain a consistent daily protocol.

How does Heart of Steel help circulation and blood flow?

Heart of Steel targets pathways that influence nitric oxide availability and microvascular function. L-citrulline and L-arginine are direct precursors that support nitric oxide synthesis, while CoQ10 and resveratrol provide antioxidant and mitochondrial support that complement blood flow benefits.

• L-citrulline 1000mg and L-arginine HCl to support nitric oxide production.
• CoQ10 and resveratrol for cellular energy and antioxidant support.
• Botanical extracts like ginkgo biloba and quercetin for circulation support.

Who should take this nitric oxide supplement and when?

Heart of Steel is intended for adults who want capsule-based nitric oxide support for training, daily energy, or vascular wellness. It’s suitable for men and women who prefer a once-daily supplement routine and those who combine circulation support with exercise or busy work schedules.

• Active adults seeking pre-workout circulation support.
• Anyone wanting a capsule alternative to powders or gummies.
• People looking for antioxidant and adaptogen ingredients alongside nitric oxide precursors.

How do I use the capsules safely and effectively?

The recommended serving is four capsules daily taken with food and water; this dosage spreads the formula across a single day to maintain steady ingredient levels. Taking the capsules with a meal reduces the chance of stomach upset and supports nutrient absorption.

• Take 4 capsules daily with food and water.
• Use consistently for several weeks to assess effects.
• Consult a healthcare provider if pregnant, nursing, or on medication.

What makes this a comprehensive nitric oxide complex?

Rather than relying on one active ingredient, Heart of Steel blends amino acids with CoQ10, polyphenols, and herbal extracts. That combination addresses nitric oxide production, antioxidant protection, circulation, and adaptogenic support to better match varied lifestyle demands.

• 10-in-1 complex: amino acids, CoQ10, resveratrol, ginkgo, quercetin, ginseng, rhodiola, Coleus forskohlii, capsaicin.
• Capsule format for dosing convenience and portability.
• 120-capsule supply for an extended daily regimen.

Who is this product for? Heart of Steel is for active men and women who want a capsule-based nitric oxide and circulation support formula that combines proven precursors like L-citrulline with antioxidants and botanicals. It fits people who train regularly, those who need sustained daytime energy and circulation support, and anyone preferring a consolidated supplement instead of multiple single-ingredient bottles. If you are managing existing health conditions or taking prescription drugs, check with your healthcare professional before starting any new supplement.

Ingredients

L-Citrulline, L-Arginine HCl, CoQ10 (Ubiquinone), Resveratrol, Ginkgo Biloba, Quercetin Dihydrate, Panax Ginseng, Rhodiola Rosea, Coleus Forskohlii, Capsaicin. Other Ingredients: Rice Flour, Magnesium Stearate, Stearic Acid, Gelatin (Capsule).