Heart of Steel Stim-Free Pre-Workout

The Ultimate Stim-Free Pre-Workout—Full Doses, Full Pumps, Zero Caffeine. Heart of Steel is a premium, stimulant-free pre-workout formula built for driven athletes who train on their own terms. Experience the full power of a professional-grade pre-workout in every scoop. Whether you are chasing skin-splitting muscle pumps, sustained training endurance, or razor-sharp focus, this 10-ingredient matrix delivers everything you need — without caffeine, without a crash, and without compromise. The Formulation Factory Difference: > Most pre-workouts rely on heavy stimulants to make you feel something. Heart of Steel takes a different approach — a fully dosed, luxury-grade formula where every ingredient earns its place. No caffeine, no proprietary blends, no guesswork. Just clean, purposeful performance you can use any time of day. Key Benefits Maximized Muscle Pumps: Drive nitric oxide production and blood flow with a full 8,000 mg dose of Citrulline Malate and 1,000 mg of Agmatine Sulfate — a combined pump matrix built for serious training. Stimulant-Free Endurance: Train harder and longer at any hour without caffeine or sleep disruption. 3,200 mg Beta-Alanine and 2,500 mg Betaine Anhydrous support muscular endurance through every set. Superior Hydration Support: 4,000 mg Glycerol Powder and 1,000 mg Taurine work together to support fluid balance and keep you feeling full and primed during your most demanding sessions. Dialed-In Focus Without Caffeine: 1,500 mg of L-Tyrosine supports mental clarity and cognitive performance so you stay locked in from warm-up to cool-down — no jitters, no crash. Antioxidant-Rich Botanical Blend: Beet Root Powder and Pine Bark Extract provide naturally occurring antioxidants, while Black Pepper Extract ensures your body absorbs every ingredient efficiently. What's Inside the Matrix? We believe in complete label transparency. Here is exactly what you get in every scoop: Nitric Oxide & Pump Support Citrulline Malate (8,000 mg): The cornerstone of the formula. Supports nitric oxide production and blood flow to working muscles at a full clinical dose for maximum pump and performance. Agmatine Sulfate (1,000 mg): Works synergistically with Citrulline Malate to further amplify nitric oxide production and sustain muscle pump throughout your session. Endurance & Performance Beta-Alanine (3,200 mg): Buffers lactic acid buildup to support muscular endurance. A full clinical dose so you can push through every set of every workout. Betaine Anhydrous (2,500 mg): Supports power output and muscular endurance during high-volume training sessions. Hydration & Focus Glycerol Powder (4,000 mg): Promotes cellular hydration and fluid retention during exercise, keeping you feeling full and primed from start to finish. L-Tyrosine (1,500 mg): An amino acid that supports mental focus and cognitive performance during intense training — completely caffeine-free. Taurine (1,000 mg): Supports cellular hydration and electrolyte balance during demanding workouts. Botanical & Absorption Support Beet Root Powder (500 mg): A natural source of nitrates and antioxidants to complement your active lifestyle and support endurance performance. Pine Bark Extract (200 mg): Provides naturally occurring antioxidants to support recovery and overall wellness. Black Pepper Extract (10 mg): Contains piperine to enhance the bioavailability and absorption of every ingredient in the formula.