340mg caffeine, 5g citrulline, blackout-level training intensity.
BZRK Blackout is a high-stim pre-workout that focuses on solid pumps to make your workouts feel good, nootropics to sharpen your mind and moves, and stims to push you through tough sessions. This isn't for everyone – it's made for folks who want a strong, intense ride.
It starts with 5,000mg of L-citrulline for pumps and performance. That's a bit under the 6–8g that a lot of experts say is ideal for full effect, but it's way better than the weak 2–3g in some products. Citrulline boosts arginine levels better than taking arginine straight, which helps nitric oxide – that's the stuff that widens blood vessels for better flow and that full muscle feel. You get 1,600mg of 65% glycerol powder to help hydrate cells and keep blood volume up, 600mg agmatine sulfate for extra pump and brain support, and 200mg sodium from Himalayan pink salt to hold onto fluids during training. There's 1,300mg malic acid too, which adds to the pumps and gives that tangy pre-workout taste, though it's not the main player here.
For lasting through sets, there's 1,800mg beta-alanine and 1,200mg betaine anhydrous. Beta-alanine builds up carnosine in muscles over time, which fights acid buildup during high reps or back-to-back efforts. Heads up: the sweet spot is usually 3.2g+ per day, so 1.8g is helpful but not the full dose. Betaine is in a similar spot – studies often use 2.5g for power and body comp benefits; 1.2g adds something, but it's not maxed out.
The focus compl
BMS Blackout Pre by Black Magic Supply contains 200mg Sodium, a standard dose for training performance and pump.
Key Highlights
- 5,000mg L-Citrulline – this is a real dose that boosts nitric oxide through the arginine pathway. You get better blood flow, bigger pumps, and muscles that feel full, way better than those skimpy 2–3g versions out there.
- 340mg Total Caffeine from Two Sources – 310mg straight caffeine anhydrous for quick energy, plus 40mg di-caffeine malate to stretch it out a bit. It hits harder up front than your average pre and avoids that sudden crash from single-source caffeine.
- 1,600mg 65% Glycerol Powder – this helps hydrate your cells, hold onto fluids, and make muscles look and feel rounder during lifts. Basically, it makes the pump pop more instead of fizzling out.
- 600mg Agmatine Sulfate – a go-to for pumps that works great with citrulline. It boosts vasodilation and that full feeling, plus it adds to the overall gym vibe.
- 1,000mg L-Tyrosine – a solid addition for focus that backs up the stims better than caffeine solo. Tyrosine helps make brain chemicals for alertness and drive, perfect for a high-energy mix.
- 440mg Lion’s Mane Mushroom Extract – not your usual in heavy stim pre's, but it adds brain support for real mental clarity beyond just being wired.
- 300mg Mucuna Pruriens Extract at 98% L-Dopa – this brings serious motivation that you won't find in milder stuff. It's why Blackout feels more intense and driven than basic energy drinks.
- 400mcg Rauwolscine – a tiny amount that packs a punch, standardized for alpha-yohimbine to add that edge and urgency high-stim fans love.
BMS Blackout Pre by Black Magic Supply contains 200mg Sodium, a standard dose for training performance and pump.
Who Is This For?
- Seasoned lifters doing 60–90 minute hypertrophy sessions who want visible pumps and a strong mental kick. 5g citrulline, glycerol, agmatine, and sodium handle fullness, while 340mg caffeine plus tyrosine and mucuna fuel the intensity for long workouts.
- Advanced folks training post-work who need to shake off fatigue fast. The layered stims are made for that, going beyond basic caffeine with focus boosters to keep you dialed in.
- High-stim fans who've moved past 150–250mg caffeine starters. 340mg total, rauwolscine, theobromine, and extras are for those who handle and crave stronger stuff.
- Bodybuilders chasing mind-muscle link and session fire. Citrulline, glycerol, agmatine, tyrosine, and alpha-GPC boost both pumps and mental lock-in for better volume work.
- Lifters in build phases with extra sets, accessories, and quick rests. Beta-alanine and betaine help repeat efforts, pumps keep muscles engaged late in the game.
- People who like knowing exactly what's in it. Blackout shows every dose, no hiding – key in a world of shady stim blends.
How to Use
Try half a scoop first to test it out – this is a straight-up high-stim mix with 340mg caffeine, rauwolscine, and more. If it's good, go full scoop in 10–16 oz cold water 20–30 minutes pre-lift; that lets everything activate by your working sets. Shake it hard in a bottle since glycerol mixes better that way. Less water for bold flavor and thick feel; more water and ice for easy sipping. Empty stomach makes it hit faster and stronger; after food softens and slows it. Don't stack with other caffeine-heavy stuff or yohimbine unless you're sure. Pairs great with plain creatine and an intra carb/electrolyte drink, but no need for extra stims. Keep it sealed in a cool, dry spot, and take breaks if you use it a lot to reset tolerance.
What to Expect
Minutes 0–10: sip it down, it settles, and if you're used to stims you might feel the mental pick-up first. Minutes 10–20: caffeine hits, beta-alanine tingles start, and you feel more alert and ready. Minutes 20–40: prime time to train – energy's up, focus is on point, and the citrulline/glycerol/agmatine/sodium mix brings noticeable pumps. Minutes 40–90: still feels strong, with caffeine-malate and theobromine keeping it going past the rush. Days 1–7: stim and pump effects hit right away, beta-alanine starts loading carnosine. Weeks 2–4: beta-alanine builds up more, plus steady use of other stuff, but the daily feel is all about that high-stim energy.
Key Ingredients
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L-Citrulline — 5000mg — Drives visible pump and stronger workout blood flow
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Caffeine Anhydrous + Di-Caffeine Malate — 340mg total caffeine — Fast onset energy with a longer training runway
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65% Glycerol Powder — 1600mg — Enhances muscle fullness through cellular hydration support
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L-Tyrosine — 1000mg — Sharpens focus by supporting catecholamine production
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Agmatine Sulfate — 600mg — Rounds out pumps with added fullness support
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Betaine Anhydrous — 1200mg — Adds output support beyond pure stimulation alone
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Lion's Mane Mushroom Extract — 440mg — Expands the formula’s cognition support beyond stimulants
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Alpha GPC 50% — 300mg — Supports mind-muscle focus through cholinergic activity
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Mucuna Pruriens Extract (98% L-Dopa) — 300mg — Amplifies motivation and hard-edged training drive
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Rauwolscine — 400mcg — Adds the edge experienced high-stim users chase
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Sodium — 200mg — Supports hydration, pumps, and training fluid balance
BMS Blackout Pre by Black Magic Supply contains 200mg Sodium, a standard dose for training performance and pump.
Frequently Asked Questions
How much caffeine is in BZRK Blackout Pre-Workout?
Each full serving delivers 340mg total caffeine: 310mg from caffeine anhydrous and 40mg from di-caffeine malate. The anhydrous form gives a fast, noticeable onset, while di-caffeine malate helps slightly extend the energy curve.
Is BZRK Blackout a high-stim pre-workout?
Yes. Beyond the 340mg total caffeine, it also includes rauwolscine, theobromine, N,N-Phenethyldimethylamine citrate, and 300mg mucuna pruriens extract standardized to 98% L-Dopa, making it far more aggressive than entry-level pre-workouts.
Does BZRK Blackout still have pump ingredients or is it only stimulants?
It still has a legitimate pump backbone. You get 5,000mg L-citrulline, 1,600mg 65% glycerol powder, 600mg agmatine sulfate, and 200mg sodium, which together support blood flow, hydration, and muscle fullness.
Is the beta-alanine dose in BZRK Blackout clinical?
It provides 1,800mg beta-alanine per serving, which is useful but below the classic 3.2g daily benchmark commonly associated with full clinical carnosine-loading protocols. You can still benefit from consistent use, but it is not a maximal beta-alanine dose.
How much active Alpha-GPC does this formula provide?
The label lists 300mg Alpha GPC 50%, which yields 150mg active alpha-GPC. That is below the 300–600mg pure alpha-GPC range many users look for from fully clinical nootropic dosing, but it still contributes to the formula’s broader focus stack.
Should beginners use BZRK Blackout?
No, this is not an ideal beginner pre-workout. The stimulant load is high and includes rauwolscine and additional stimulating compounds beyond caffeine, so most new users should choose a lower-stim formula or begin with half a scoop only if they are very comfortable with stimulants.
When should I take BZRK Blackout before training?
Most users should take it 20–30 minutes pre-workout. That timing gives the caffeine, focus ingredients, and pump support enough time to start working before your first major working sets.
Can I stack BZRK Blackout with creatine?
Yes. In fact, a standalone creatine monohydrate is one of the best additions because this formula does not include creatine, and creatine complements beta-alanine and betaine by supporting phosphocreatine replenishment and strength performance.
Will BZRK Blackout cause tingles?
It can. The 1,800mg beta-alanine dose is enough for many users to experience paresthesia, the harmless tingling sensation commonly felt in the face, hands, or upper body after taking pre-workout.
Is BZRK Blackout fully transparent?
Yes. The formula uses a full-disclosure label with no proprietary blend, so every active ingredient and every dose is printed clearly on the panel.