Black Magic Supply | BZRK | 25 Servings

Black Magic Supply BZRK is a high-stimulant pre-workout built around three pillars: nitric oxide support and cell volumization, acute mental drive, and a hard-hitting stimulant finish. This is not a minimalist daily driver. It is a formula designed to make training feel bigger, sharper, and more forceful, using transparent dosing across a broad active panel rather than hiding behind a proprietary blend.

The pump foundation starts with 5,000mg of L-citrulline. Citrulline is a precursor to arginine that bypasses first-pass metabolism and is converted in the kidneys, raising arginine availability more reliably than arginine itself. That matters because arginine feeds endothelial nitric oxide synthase, increasing nitric oxide production and promoting vasodilation. The strongest research-backed range for L-citrulline is typically 6-8g, so 5g lands just below the classic clinical target but still firmly in the effective zone for noticeable blood-flow support, especially when combined with glycerol and stimulants. Expect better muscle fullness, easier warm-up sets, and a more persistent pump once training starts.

The hydration side is handled by 1,600mg of 65% glycerol powder plus 200mg sodium from Himalayan pink sea salt. Glycerol increases fluid retention in total body water and supports hyperhydration, which translates in the gym to denser muscles, stronger pumps, and better training feel. Sodium supports extracellular fluid balance, nerve transmission, and muscle contraction through the sodium-potassium pump. Together, they amplify the “full” look and feel that lifters want from a stim pre.

For endurance support, BZRK includes 1,800mg beta-alanine. Beta-alanine works by increasing intramuscular carnosine over time, which buffers hydrogen ions generated during hard training. The classic clinical target is 3.2g daily, so 1.8g is under the standard full-loading dose in a single serving. You can still benefit if used consistently or paired with standalone beta-alanine, but on its own this is better described as partial support rather than a complete evidence-based daily loading dose.

Strength and performance support continue with 1,200mg betaine anhydrous. The literature is strongest around roughly 2.5g daily, so this dose is again below the common clinical benchmark, but still directionally useful in a formula already aimed at performance and cell hydration. Malic acid at 1,300mg likely contributes to the formula’s flavor architecture and may support perceived training energy, though it is not present in a dose that defines the formula.

The focus complex is where BZRK separates itself from basic caffeine-heavy pre-workouts. L-tyrosine is dosed at 1,000mg, a meaningful amount for preserving cognitive performance under acute stress. Tyrosine is a precursor to dopamine, norepinephrine, and epinephrine, and research shows it is especially valuable when the brain is under physical or psychological strain rather than at rest. Lion’s mane extract at 440mg adds a mushroom-derived nootropic angle, while 300mg alpha-GPC 50% yields about 150mg active alpha-GPC, a useful but not fully clinical choline contribution for acetylcholine support and mind-muscle connection. Mucuna pruriens extract standardized to 98% L-Dopa at 300mg is an aggressive inclusion aimed at dopaminergic drive and motivation.

The stimulant system is unapologetically strong: 310mg caffeine anhydrous, 40mg di-caffeine malate, and 60mg theobromine for a measured total of 339.2mg caffeine plus secondary methylxanthine stimulation. Caffeine drives alertness, power, and reduced perceived exertion. Theobromine is milder but adds adenosine antagonism, PDE inhibition, vasodilation, and smoother carry-through. Add in the advanced stimulant matrix and 400mcg rauwolscine, and the formula clearly lands in high-stim territory.

Synergistically, BZRK is well-structured. Citrulline, glycerol, and sodium improve the physical feel of training; caffeine, tyrosine, alpha-GPC, lion’s mane, and mucuna sharpen mental output; agmatine at 600mg adds another pump-and-focus bridge through neuromodulatory and nitric oxide-related pathways. The formula is fully disclosed, which is a real advantage in a category where heavy stim products often hide key doses. Day 1, expect pronounced energy, tingles, stronger focus, and fuller pumps. Over 2-4 weeks, the cumulative benefits come mostly from beta-alanine loading and consistent pre-training performance habits, though beta-alanine here is not fully dosed if this is your only daily source.

How to Use Black Magic Supply | BZRK for Optimal Results