Formulation Factory Heart of Steel Stim-Free Pre Workout - Nitric Oxide Boosting Formula for Gym Performance & Endurance - 10-Ingredient Matrix with L-Citrulline - 840g, 30 Servings
Stock Expiry Date*: 21-12-2027
Made in the USA
100% Authentic — Sourced directly from manufacturers or their authorized dealers!
- FULLY DOSED NITRIC OXIDE FORMULA: Heart of Steel features 8,000 mg of L-Citrulline and 1,000 mg of Agmatine Sulfate per serving to support your body's nitric oxide production during workouts. A generous dose designed to support muscle pumps and workout performance — no stimulants.
- STIM-FREE PRE-WORKOUT FOR ANY TIME OF DAY: Powered by 3,200 mg Beta-Alanine and 2,500 mg Betaine Anhydrous, this caffeine-free formula supports workout endurance and training capacity. Train in the morning or late at night without worrying about caffeine keeping you up.
- HYDRATION SUPPORT FOR INTENSE TRAINING: With 4,000 mg Glycerol Powder and 3,600 mg Taurine, Heart of Steel supports fluid balance during demanding workouts. Stay hydrated and feel full and primed during your toughest gym sessions.
- FOCUS WITHOUT THE CRASH: 1,500 mg of L-Tyrosine supports mental focus during training — completely caffeine-free. Stay dialed in through every set without the jitters or the post-workout crash that comes with stimulant-heavy formulas.
- ANTIOXIDANT-RICH BOTANICAL BLEND: Beet Root Powder (500 mg) and Pine Bark Extract (200 mg) provide naturally occurring antioxidants to complement your active lifestyle. Black Pepper Extract (10 mg) supports nutrient absorption so every ingredient works efficiently.
- 10 INGREDIENTS, FULLY TRANSPARENT LABEL: Every ingredient and dose is listed right on the label. No proprietary blends, no mystery formulas. You know exactly what you're putting in your body every single serving.
- YOUR SATISFACTION MATTERS: We back every bottle. Questions or concerns? Reach out through messages — our team is here to help.
| Primary Supplement Type | Coq10, Quercetin, Nitric Oxide, Resveratrol, L-Arginine, Ginkgo Biloba, Blood Pressure Support, L Citrulline Natural Pre-Workout, Heart Support |
| Ingredients | Citric Acid, Malic Acid, Silicon Dioxide., Stevia Leaf Extract, 000 mg), beet root powder (for color), L-Tyrosine (1, 200 mg), 600 mg), 500 mg), L-Citrulline (8, Glycerol Powder 65% (4, Taurine (3, Beta-Alanine (3, Betaine Anhydrous (2, Agmatine Sulfate (1, Beet Root Powder 1% Nitrate (500 mg), Pine Bark Extract 95% Proanthocyanidins (200 mg), Black Pepper Fruit Extract 95% Piperine (10 mg). Natural berry flavors |
| Brand | Formulation Factory |
| Flavor | Heart of Steel - Pre Workout |
| Unit Count | 29.63 Ounce |
| Item Form | Powder |
| Item Weight | 840 g |
| Product Benefits | Heart Health Support |
| Number Of Items | 1 |
| Dosage Form | Powder |
| Color | Heart of Steel Pre-workout |
| Manufacturer | Formulation Factory |
| Product Type | Nitric Oxide Boosters |
| Specific Uses For Product | Heart Support |
| Model Name | Heart of Steel Stim-Free Pre Pack 1 |
| Global Trade Identification Number | 00199874200934 |
| Brand Name | Formulation Factory |
| Age Range Description | Adult |
| Container Type | Bottle |
| Manufacturer Part Number | HOS-PRE-01 |
| Total Servings Per Container | 30 |
| Model Number | HOS-PRE-01 |
-
5% off when you buy 4 or more.
-
Get 5% off your next purchase.
-
Orders are processed and shipped from Brooklyn, USA.
-
Free delivery on qualifying orders.
3-6 days (Domestic)
30-Day Return Guarantee
Confidence-backed purchases with 30-day return support.
SKU |
BRSRGHA6PMBWCD3D |
Category |
Diet & Sports Nutrition , Sports Nutrition , Pre-Workout , Nitric Oxide Boosters |
Barcode |
00199874200934 |
Tags |
Important information
Safety Information
For adult use only. Do not exceed the recommended dose. Consult your healthcare provider before use if you are pregnant, nursing, or planning to conceive. Consult your healthcare provider if you have a medical condition, including hormonal disorders, high blood pressure, or liver/kidney issues, or if you are taking medications such as blood thinners, hormone therapy, or antidepressants. Discontinue use and seek medical advice if you experience adverse reactions. Keep out of reach of children. Do not use if the safety seal is damaged or missing. Store in a cool, dry place.
Ingredients
L-Citrulline (8,000 mg), Glycerol Powder 65% (4,000 mg), Taurine (3,600 mg), Beta-Alanine (3,200 mg), Betaine Anhydrous (2,500 mg), L-Tyrosine (1,500 mg), Agmatine Sulfate (1,000 mg), Beet Root Powder 1% Nitrate (500 mg), Pine Bark Extract 95% Proanthocyanidins (200 mg), Black Pepper Fruit Extract 95% Piperine (10 mg). Natural berry flavors, citric acid, malic acid, stevia leaf extract, beet root powder (for color), silicon dioxide.
Directions
Take the supplement as directed on the label, typically 4 capsules daily with water. (Max 4 capsules per day). Consume with food to improve absorption. Do not exceed the recommended dose. Consult a healthcare professional before use, especially if taking medications or other supplements. For peak performance, stack with SELF OBSESSED for endurance and THE NIGHT BEFORE for deep overnight recovery. Stay hydrated and fuel your body with a high-protein diet for optimal results.
Legal Disclaimer
Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Package Dimensions
6.26 x 4.92 x 4.92 inches; 1.85 pounds
Shipping & Delivery
At Nutricity, we aim to deliver your order as quickly and safely as possible.
Domestic Shipping :
Orders are typically delivered within 3–6 business days.
International Shipping:
Estimated delivery time is 12–26 business days, depending on the destination and customs processing.
You will receive a tracking number once your order has been dispatched. Delivery times may vary during holidays or due to unforeseen delays.
Recently tracked orders
Disclaimer
Dietary supplements are not medicines. Products sold on this website are not intended to diagnose, treat, cure, or prevent any disease. If you have a medical condition then always consult a qualified healthcare professional before use. Individual results may vary. By placing an order, you agree to comply with your country’s import regulations. We cover applicable duties and taxes where stated.
*Expiry Date Information:
Please note that the expiry date may vary from batch to batch. However, we guarantee that all products shipped to our customers have a valid shelf life and will not be expired at the time of delivery.