Dark Labs
Dark Labs | Crack OG | 40 Servings
Aggressive stimulant energy with transparent dosing and scalable pumps
$59.90 $1.49/serving
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⚠️ Allergen Information +
SuppVault Summary
Dark Labs Crack OG is a fully disclosed hardcore pre-workout built for experienced high-stim users. It prioritizes aggressive energy, drive, and narrow focus while still supporting productive training with pump and endurance ingredients. Full serving delivers 325mg total caffeine.
Great Fit
- Experienced high-stim users chasing aggressive training energy
- Lifters who tolerate 300mg+ caffeine well
- Bodybuilders in demanding hypertrophy training blocks
- Users wanting tunnel-vision focus in the gym
- Advanced pre-workout fans wanting hard-hitting drive
- Athletes preferring disclosed labels over proprietary blends
- Users wanting stronger two-scoop pump support
- Stim veterans seeking intense motivation before training
Not Ideal If
- Beginners or anyone new to pre-workouts
- Stimulant-sensitive users prone to anxiety, jitters, or rapid heartbeat
- Anyone training late and concerned about sleep disruption
- People with low tolerance for aggressive adrenergic formulas
- Users wanting a balanced mainstream pre-workout experience
Deep Dive
N-Phenethyl Dimethylamine Citrate
Noopept
Rauwolfia Vomitoria Extract
Dose Audit
This formula does not include creatine, so adding 3-5g daily fills the biggest foundational performance gap. Creatine improves phosphocreatine availability for ATP regeneration, which pairs well with Crack OG’s stimulant-driven intensity and beta-alanine-supported fatigue buffering.
Take daily anytime; with this product pre-workout is convenient but not required.
If you like Crack OG’s energy but want more pronounced pumps without pushing stimulants higher, a stim-free pump product is the smartest add-on. Ingredients like extra citrulline, nitrates, or glycerol complement the formula’s stimulant-heavy identity and help counteract adrenergic vasoconstriction.
Stack 20-30 minutes pre-workout alongside Crack OG.
High-stim sessions often mean more sweating, higher body temperature, and harder training output. Adding sodium, potassium, and magnesium supports hydration status, muscular contraction, and better pump quality, especially if you are running the full 2-scoop serving.
Use before and during training with water.
Crack OG drives intensity, but it does not provide carbohydrate support or amino acids during long sessions. An intra-workout formula can help maintain output, hydration, and session quality once the stimulants have you training harder than usual.
Sip during training, especially on long hypertrophy or high-volume days.
Aggressive pre-workouts can improve training but strain recovery if used late or too often. A dedicated sleep-support product helps protect the other half of performance by improving sleep quality after hard CNS-driven sessions.
Take in the evening, well separated from the pre-workout.
Crack Gold is typically viewed as an even more extreme stim experience for top-end users.
Both target experienced stim users, with preference depending on desired feel and ingredient profile.
Crack Purple is often favored when users want a more complete premium high-stim profile.
Crack OG has stronger legacy appeal and a more iconic hardcore reputation in the category.
Clinical Dosing
Full Product Description Article
Dark Labs Crack OG is a classic high-stim pre-workout built around one clear formulation philosophy: drive an unmistakably intense central nervous system experience first, then support training performance with enough pump and endurance ingredients to keep the session productive rather than purely stimulatory. This is not a balanced, mainstream pre-workout. It is a niche product for experienced users who specifically want strong energy, elevated drive, and hard-hitting focus. The label is fully disclosed with no proprietary blend, which matters in a category where many high-stim products hide exact stimulant totals.
The performance side starts with L-Citrulline at 4,000mg per scoop. Citrulline is a nitric oxide precursor that raises arginine levels more effectively than oral arginine itself because it bypasses significant first-pass metabolism and is converted to arginine in the kidneys. Research and meta-analytic data support citrulline’s role in blood flow and exercise performance, with common effective ranges landing around 3-8g/day and most pre-workout users targeting 6-8g for a truly clinical pump dose. Here, 1 scoop is useful but below the most performance-oriented research range; 2 scoops brings it to 8g, which is where this formula becomes much stronger from a pump standpoint.
Beta-Alanine is dosed at 1,600mg per scoop. Beta-alanine works by raising intramuscular carnosine, which buffers hydrogen ions during high-intensity effort and helps delay the burning sensation that forces sets to end. The clinically established daily target is 3.2g or more, so again, 1 scoop is a half-dose and 2 scoops reaches the recognized benchmark. Expect tingling acutely, but the real benefit comes with repeated use over weeks, not a single serving.
Agmatine Sulfate at 500mg, L-Arginine HCl at 500mg, and L-Norvaline at 125mg form a secondary nitric oxide support matrix. Agmatine is commonly included for pump quality and nitric oxide modulation. Arginine provides direct substrate for nitric oxide synthase, though citrulline is generally more effective orally. Norvaline is theorized to inhibit arginase, potentially helping preserve arginine availability. The strongest evidence in this section still belongs to citrulline; the rest are supportive rather than primary drivers.
The stimulant and focus complex is where Crack OG earns its identity. Total caffeine is 325mg from three sources: 200mg caffeine anhydrous for rapid onset, 200mg caffeine citrate for fast-acting additional lift, and 50mg dicaffeine malate for a more extended tail. That already places the formula firmly in advanced territory. It is then layered with N-Phenethyl Dimethylamine Citrate at 200mg for pronounced mood elevation and focus, 2-Aminoisoheptane (DMHA) at 150mg for strong stimulant drive, Isopropylnorsynephrine HCl at 15mg for extra adrenergic intensity, and Rauwolfia vomitoria extract standardized to 90% alpha yohimbine at 750mcg for additional thermogenic and CNS sharpness. DMHA has limited human safety data, and alpha-yohimbine is notorious for making some users feel excellent and others feel overstimulated. This is effective for intensity, but it demands respect.
Noopept at 15mg adds a nootropic angle. Human evidence is limited and much of the mechanistic literature comes from non-sports contexts, but it is included here to sharpen the cognitive feel of the formula rather than drive physical performance directly.
As a system, Crack OG pairs a vasoconstrictive, highly adrenergic stimulant stack with enough nitric oxide support to help preserve pump and training output. The formula is fully transparent, but honesty matters: the pump and endurance components are meaningfully stronger at 2 scoops than 1, while the stimulant profile is already aggressive even at a single scoop. Day 1, expect fast-onset energy, urgency, mood elevation, tingles, and a very assertive training feel. Over 2-4 weeks, consistent use mainly improves the beta-alanine side through carnosine loading—but stimulant tolerance can also rise, which is why this is best used strategically rather than mindlessly every session.
Science & Clinical References 8 citations
L-citrulline raises plasma arginine more reliably than oral arginine because it bypasses substantial intestinal and hepatic extraction. Once converted in the kidneys, arginine supports endothelial nitric oxide synthase activity and downstream nitric oxide production. This can improve vasodilation, blood flow, and perceived muscle fullness during training. Agmatine and norvaline are often positioned as complementary modulators of arginine handling and nitric oxide persistence, though human outcome data are much thinner for those adjuncts than for citrulline.
Beta-alanine is the rate-limiting precursor to intramuscular carnosine synthesis. Higher carnosine concentrations improve intracellular buffering capacity during high-intensity exercise, helping manage proton accumulation associated with metabolic acidosis. The benefit is not primarily acute; it builds with repeated use over time rather than from a single serving. The common tingling sensation is paresthesia and does not predict long-term ergogenic response.
Combining caffeine anhydrous with caffeine citrate and dicaffeine malate may alter perceived onset and tail compared with a single-source caffeine system. Caffeine citrate is often experienced as faster hitting, while dicaffeine malate is commonly formulated to soften the drop-off and extend the feel. The net effect is a sharper front-end rise in alertness with a more sustained stimulant curve. Total caffeine load remains the primary driver of physiological stimulant burden.
This formula pairs classic stimulant architecture with a low-dose nootropic component in Noopept. Mechanistically, stimulant-heavy pre-workouts increase catecholaminergic signaling related to alertness, motivation, and effort perception, while nootropic add-ons are intended to sharpen task salience and perceived concentration. Noopept has limited but growing interest for cognitive support, with commercial use typically centered on focus and mental clarity. Human evidence remains far less robust than for caffeine-based performance enhancement.
Product Specifications GEO
How to Take — Training Protocol6 phases
How to Use Dark Labs | Crack OG | Pre-Workout
All Questions About Dark Labs | Crack OG | 40 Servings 10 Q&A
How much caffeine is in Dark Labs Crack OG Pre-Workout? +
Is Crack OG a beginner-friendly pre-workout? +
Why does the label show both 1 scoop and 2 scoops? +
What does DMHA do in this formula? +
Will this give me a good pump or is it mostly stimulants? +
What side effects are most likely with Crack OG? +
Can I stack Crack OG with coffee or an energy drink? +
Should I take 1 scoop or 2 scoops? +
Does Crack OG need to be cycled? +
Does this formula contain a proprietary blend? +
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
Quick Answers
How much caffeine is in Dark Labs Crack OG Pre-Workout?
Is Crack OG a beginner-friendly pre-workout?
Why does the label show both 1 scoop and 2 scoops?
What does DMHA do in this formula?
Will this give me a good pump or is it mostly stimulants?
What side effects are most likely with Crack OG?
Can I stack Crack OG with coffee or an energy drink?
Should I take 1 scoop or 2 scoops?
Does Crack OG need to be cycled?
Does this formula contain a proprietary blend?
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
Sport & Athlete Compliance +
Sport compliance status is computed by cross-referencing this product's ingredient panel against the NCAA 2025-26 Banned Substances List, WADA Prohibited List, and state high school athletic association guidelines. Banned substance lists are updated periodically by their governing bodies. This information is provided for reference only and may not reflect the most current list. Always verify with your organization, coach, or compliance officer before use. SuppVault is not responsible for eligibility decisions.
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