Black Magic Supply | BMS Blackout Pre | 25 Servings

BZRK Blackout is a high-stim pre-workout built around a clear formulation philosophy: enough pump support to make training feel productive, enough nootropic support to sharpen intent and execution, and a stimulant profile strong enough to drive urgency through demanding sessions. This is not a “balanced for everyone” pre-workout. It is a deliberately aggressive formula for people who want a hard-hitting training experience.

The pump and performance base starts with 5,000mg of L-citrulline. That sits just under the common 6–8g range many clinicians and formulators view as the sweet spot for fully clinical pre-workout dosing, but it is still a meaningful amount and well above the token 2–3g doses seen in weaker formulas. Citrulline raises arginine more effectively than oral arginine itself, feeding nitric oxide production through the arginine-NO pathway to support vasodilation, blood flow, and the “full” feeling during training. It is paired with 1,600mg of 65% glycerol powder, which contributes cell hydration and plasma-volume support, 600mg agmatine sulfate for additional pump and neuromodulatory support, and 200mg sodium from Himalayan pink salt to help fluid retention and training hydration. Malic acid at 1,300mg complements the pump system and contributes the tartness commonly associated with pre-workouts, though its standalone ergogenic impact here is secondary.

For endurance and output, BZRK Blackout includes 1,800mg beta-alanine and 1,200mg betaine anhydrous. Beta-alanine works by increasing muscle carnosine over time, improving intracellular acid buffering during high-rep sets and repeated hard efforts. The catch: the best-supported daily intake is typically 3.2g+, so 1.8g is useful but under the classic full clinical benchmark. Betaine is similarly in the “good, but not full clinical” zone. Research often uses around 2.5g daily for power output and body composition support; 1.2g can still contribute, but this is not a maximal betaine dose.

The focus complex is one of this formula’s real identities. L-tyrosine at 1,000mg supplies catecholamine precursor support, especially relevant when combined with stimulants. Lion’s mane extract at 440mg adds a cognition-support angle. Alpha-GPC 50% at 300mg yields 150mg active alpha-GPC, which is below the 300–600mg pure alpha-GPC range most users look for from a fully clinical nootropic dose, but still supports the formula’s focus architecture. Mucuna pruriens extract at 300mg standardized to 98% L-Dopa is a very assertive inclusion, positioned to intensify drive and motivation.

The stimulant system is unmistakably high-stim: 310mg caffeine anhydrous plus 40mg di-caffeine malate yields 340mg total caffeine, with the malate form slightly extending the curve beyond the immediate hit of anhydrous caffeine. That is reinforced by 60mg theobromine, 100mg N,N-Phenethyldimethylamine citrate, and 400mcg rauwolscine standardized for alpha-yohimbine activity. This is where Blackout earns its name: rapid onset, elevated intensity, and a sharper, more aggressive feel than standard mainstream pre-workouts.

The synergy is coherent. Citrulline, glycerol, sodium, and agmatine support blood flow and fullness. Caffeine, phenethylamine-type stimulation, rauwolscine, tyrosine, and mucuna push energy, alertness, and training aggression. Beta-alanine and betaine support the work itself. The formula is also fully disclosed with no proprietary blend, which matters in a category where many high-stim products still hide behind blends to obscure stimulant loads.

What to expect: day one brings strong energy, noticeable urgency, likely beta-alanine tingles, and a harder-edged focus profile. Over 2–4 weeks, the cumulative gains come mostly from beta-alanine loading and consistent betaine use, while the acute experience remains driven by the stimulant and pump systems. In short, BZRK Blackout is transparent, aggressive, and clearly designed for experienced users who want their pre-workout to feel powerful — not polite.

How to Use BZRK | Blackout | Pre-Workout | 25 serving