ESN Crank 2.0 Review — What Changed, How It Performs, and Who Should Use It

Table of Contents

1. Key Highlights:
2. Introduction
3. What ESN changed: The headline differences between Crank and Crank 2.0
4. Ingredient-by-ingredient: What’s inside Crank 2.0 and why it matters
5. How Crank 2.0 targets pumps, performance, and focus
6. Stimulant profile and safety considerations
7. Practical dosing, timing, and stacking strategies
8. Taste, mixability, and product options
9. How Crank 2.0 stacks up against the competition
10. Who should use Crank 2.0 — target users and who should avoid it
11. Price, availability, and value proposition
12. Practical scenarios: how Crank 2.0 performs in common use cases
13. Final verdict: Where Crank 2.0 fits in a modern pre-workout lineup
14. FAQ

Key Highlights:

• ESN trimmed its original Crank formula from 19 g to 13 g, keeping strong pump support via 6 g citrulline malate while removing arginine and streamlining amino acids.
• New additions include patented pump agent CitraPeak (200 mg), doubled taurine (2 g), 1 g tyrosine for focus, plant adaptogens, synephrine (15 mg), and a stimulant profile that requires label verification (source listings vary).
• The relaunch targets a more modern balance of pumps, endurance, and controlled stimulation, with single- and double-serving flexibility and a retail price of €33.90 for 20 servings (sample option available).

Introduction

A reboot can mean small tweaks or a full reimagining. ESN chose the latter for Crank 2.0. The new formula abandons the bloat of a 19 g serving and several grams of intact amino acids in favor of a tighter, evidence-minded 13 g blend that prioritizes nitric oxide-mediated pumps, endurance support, and a refined stimulant package. That shift reflects broader trends among European pre-workout makers: concentrate the active dosages that drive perceptible effects, cut non-essential fillers, and include targeted patented ingredients to differentiate on performance claims.

Crank 2.0 keeps familiar strengths — meaningful citrulline malate and a stimulant hit — while rebalancing around modern pump science and consumer demand for flexible dosing. This review parses what changed, why it matters for training, and whether the new formulation lives up to the promise of a cleaner, more effective pre-workout.

What ESN changed: The headline differences between Crank and Crank 2.0

The original Crank was a broad-spectrum, stimulant-forward pre-workout with a large serving size and a mix of amino acids designed to provide immediate energy and recovery support. Crank 2.0 pares that back and reallocates ingredient space to what the brand clearly views as primary drivers of pre-workout efficacy.

Key structural changes:

• Serving weight reduced from roughly 19 g to approximately 13 g. The product sheds several grams of amino acids and inactive fillers.
• Citrulline malate remains the foundation of the pump matrix at 6 g per scoop, delivering roughly 4 g of free citrulline — enough to produce reliable vasodilation in most users when combined with other nitric oxide promoters.
• Arginine, once a common inclusion in European formulas, is gone. ESN replaced it with CitraPeak, a patented citrus bioflavonoid extract, at 200 mg intended to augment nitric oxide signaling and vascular effects.
• Taurine is doubled to 2 g, signaling greater emphasis on endurance and cellular hydration.
• Focus and neuromodulatory components include 1 g tyrosine and plant adaptogens such as ginseng and schisandra.
• The stimulant package changed shape. The formula includes synephrine (15 mg) and a maltreatment of caffeine dosing within public descriptions; the product’s marketing lists a conflicting caffeine amount, so verify the on-label number before consumption.
• The formula leaves room for double-dosing without exceeding commonly accepted single-serving upper limits for many ingredients — a nod to users who like to scale up intensity.

These alterations indicate a strategic repositioning: preserve the perceptible pump and energy but trim supporting ingredients that didn’t meaningfully contribute to the user experience.

Ingredient-by-ingredient: What’s inside Crank 2.0 and why it matters

A granular look at each core component clarifies how Crank 2.0 aims to produce tangible training benefits.

• Citrulline malate — 6 g per serving Citruilline malate remains the backbone of the pump profile. The 6 g dose is a common, evidence-backed amount that supplies roughly 4 g of free citrulline (the malate molecule accounts for part of the weight). Clinical studies link 6–8 g of citrulline malate to improved muscle blood flow, reduced fatigue, and better repetition performance during resistance training. ESN’s inclusion keeps Crank 2.0 competitive among pump-centric pre-workouts, and the dose supports perceptible vasodilation for most lifters.
• CitraPeak (patented citrus extract) — 200 mg ESN swapped arginine for a patented citrus extract marketed under the name CitraPeak. The ingredient contains bioflavonoids such as hesperidin and is promoted to enhance nitric oxide production and vascular responsiveness when coupled with citrulline. The 200 mg dose is consistent with published dosages for branded citrus flavonoid complexes. Users sensitive to arginine’s inconsistent performance should find the citrus flavonoid approach gives more reliable vasodilation when combined with citrulline.
• Taurine — 2 g Taurine doubled relative to earlier iterations. At 2 g, taurine supports cellular hydration, osmolar balance, and electrolyte regulation under exercise-induced stress. It also contributes to endurance and can smooth out stimulant effects by modulating neuronal excitability. The dose is modest but functionally relevant for longer sessions or high-volume training.
• Tyrosine — 1 g L-tyrosine plays a role in catecholamine synthesis and acute cognitive performance under stress. A 1 g dose supports improved focus and reaction times during intense training sessions. Some protocols recommend 1–2 g for acute cognitive benefits, making Crank 2.0’s single-serving addition meaningful for in-the-moment focus.
• Synephrine — 15 mg Synephrine, a bitter orange extract alkaloid, provides stimulant-like adrenergic support that can heighten energy and lipolytic signaling without relying solely on caffeine. Fifteen milligrams is a conservative dose that increases alertness and metabolic tone. Prescribers and consumers should note synephrine can interact with certain medications and may not be suitable for individuals with cardiovascular concerns.
• Ginseng and Schisandra ESN included adaptogenic botanicals that have long histories in traditional medicine and growing evidence for modulating stress responses and endurance. Ginseng has been associated with improved subjective energy and sustained mental performance; schisandra provides antioxidant support and may help with fatigue resistance. Exact doses are not always disclosed in marketing blurbs; adaptogen effects tend to be subtle and cumulative with regular use.
• Caffeine — advertised inconsistently The product description contains an inconsistency regarding caffeine. One passage lists a “mild 200 mg” of caffeine per serving. Elsewhere, ESN’s description notes that doubling the scoop results in “a strong 200 mg of caffeine,” which implies 100 mg per single scoop. That contradiction requires verification on the product label before consumption. Regardless, the formula’s stimulant profile also includes synephrine and plant-based components that alter the overall effect even if caffeine remains moderate.
• Removed components: Arginine and surplus amino acids The original Crank included arginine and several grams of amino acids that made up a large portion of the 19 g serving. Argine’s removal reflects growing evidence that dietary arginine provides inconsistent increases in nitric oxide compared with citrulline because arginine is subject to significant first-pass metabolism. Removing surplus amino acids frees dosing space for more efficacious ingredients.

Together, these components create a profile aimed at pumping, perceptible focus, and controlled stimulation rather than the “kitchen-sink” formulas of the past.

How Crank 2.0 targets pumps, performance, and focus

Three core outcomes define a successful pre-workout: enhanced muscular pumps, improved training capacity (strength and endurance), and sharper focus. Crank 2.0 reconfigures its ingredient priorities to deliver on each without unnecessary extras.

Pumps: Citrulline malate provides the nitric oxide substrate that dilates blood vessels, increasing blood flow and nutrient delivery to working muscles. CitraPeak complements citrulline by targeting endothelial function through citrus bioflavonoids. Together, these agents amplify visible and perceptible vascularity during resistance training. Removing arginine may reduce formula redundancy and improve consistency; arginine often fails to raise plasma arginine reliably, whereas citrulline consistently elevates systemic arginine and nitric oxide markers.

Performance and endurance: Taurine’s increased dose supports exercise capacity through better cellular hydration and ion balance. Citrulline malate has also been linked to reductions in perceived exertion and improved repetition performance in resistance protocols. Adaptogens such as ginseng and schisandra contribute to sustained energy and recovery across training sessions, though their effects often accrue with repeated use.

Focus and drive: Tyrosine is a direct supplement to sustain cognitive function under stress and sleep deprivation, which matters when training after a long day. The stimulant ensemble — caffeine (exact single-serving amount requires label confirmation) plus synephrine — produces a stimulant blend that aims for a strong but controlled energy spike. The inclusion of taurine reduces jitteriness for many users, and adaptogens smooth the stimulatory profile.

This combination targets lifters and athletes who want a balanced pre-workout experience: strong pumps, extended performance, and focused intensity, without the jittery overstimulation that some high-caffeine formulas produce.

Stimulant profile and safety considerations

Stimulants improve training intensity but increase the risk of side effects and interactions. Evaluating Crank 2.0’s stimulant mix requires attention to two details: the exact caffeine content per serving and synephrine inclusion.

Caffeine dosage ambiguity Marketing materials contain contradictory caffeine statements. If the single-serving caffeine is 200 mg, that is already a substantial dose and approximates the daily caffeine content of strong coffee. If the single serving is 100 mg, then doubling the scoop reaches 200 mg — still reasonable for many experienced users. Confirm the printed label before purchase. Avoid stacking additional caffeine-containing supplements or consuming large quantities of coffee around the time of use.

Synephrine and cardiovascular risk Synephrine acts on adrenergic receptors and elevates metabolic rate and alertness. At 15 mg, it sits within conservative stimulant additions commonly seen in pre-workouts. Nevertheless, synephrine can raise blood pressure and heart rate, and it interacts with beta-blockers, monoamine oxidase inhibitors (MAOIs), and other sympathomimetic drugs. Individuals with hypertension, cardiovascular disease, arrhythmias, or who are taking certain medications should consult a healthcare professional before using products containing synephrine.

Combining stimulants and tolerance management Taurine’s increase moderates stimulant effects for some users, and adaptogens may blunt extreme peaks. Still, individuals sensitive to stimulants should begin with a half-scoop or single scoop (depending on the verified caffeine number). Avoid drinking alcohol around the time of ingestion. Pregnant and breastfeeding people, adolescents, and those with certain medical conditions should avoid stimulant-containing supplements.

Label verification and batch variability Because public descriptions vary, always verify the Supplement Facts panel on the tub you purchase. Regulations in the EU and other regions require accurate labeling; buy from reputable retailers and inspect packaging to ensure you understand the stimulant content per serving.

Practical dosing, timing, and stacking strategies

ESN’s design allows for flexible dosing. Here are safe, practical approaches to integrate Crank 2.0 into training routines.

Starting dose and titration Begin with a single serving to assess tolerance. If you identify nervousness, elevated heart rate, or gastrointestinal discomfort during the first session, reduce to a half serving in subsequent workouts. If a single serving is well tolerated and you want more intensity, increase to a double serving only after confirming the caffeine content and your stimulant tolerance.

Timing Consume 20–40 minutes before training. Citrulline malate and CitraPeak produce peak hemodynamic effects within about 30–60 minutes, while caffeine and synephrine onset is typically 15–45 minutes. For late-night exercisers, be mindful of individual sensitivity to stimulants and potential sleep disruption.

Stacking

• Creatine: Safe and complementary. Creatine monohydrate increases strength and power over time; take daily irrespective of pre-workout consumption.
• Beta-alanine: Combining beta-alanine can improve high-repetition performance; if using, be aware of paresthesia (tingling) at higher doses.
• Protein shake: Post-workout protein remains essential for recovery. Crank 2.0’s reduced amino acid load means you’ll still need a post-workout protein serving if hypertrophy is the goal.
• Avoid doubling stimulant load: Do not stack additional stimulant-heavy pre-workouts or fat burners containing synephrine or high caffeine.

Double-dosing rationale and limits ESN designed Crank 2.0 so two scoops bring many ingredient totals into commonly accepted ranges found in high-strength pre-workouts: 12 g citrulline malate, 2 g tyrosine, and — depending on the actual single-scoop caffeine amount — elevated caffeine. Only experienced users with proven tolerance should use double servings, and caution is required if you have cardiovascular risk factors.

Hydration and electrolytes The pump and endurance benefits are amplified when hydration is adequate. Taurine supports cellular hydration, but pre- and intra-workout fluids plus electrolytes optimize performance, particularly for long sessions or hot conditions.

Taste, mixability, and product options

ESN credits its revamp with both functional and practical changes. The leaner 13 g serving typically produces a less viscous shake than the original 19 g, which users find easier to mix and more pleasant to sip. ESN launched Crank 2.0 in four flavors and provides a modest-priced sample pack for €2.90, letting consumers evaluate taste and stimulant tolerance before committing to a full tub.

Practical tasting notes and expectations Expect crisp, brightly flavored options in line with modern pre-workout offerings. The presence of citrus derivatives like CitraPeak can impart a tang that complements fruity flavor profiles. Mixing with 200–350 mL of cold water usually yields a light, drinkable consistency. For users who prefer milder stimulation, blending half a serving into a larger volume of water reduces perceived intensity.

Packaging and serving count ESN sells a 20-serving tub at €33.90 (about $39.44). The brand’s sample option provides excellent risk-minimizing access for first-time users. Buying direct from the manufacturer ensures authentic product sourcing and the chance to read up-to-date labeling.

How Crank 2.0 stacks up against the competition

The modern pre-workout market divides into several categories: stimulant-heavy formulas, pump-focused blends, all-in-one performance mixes, and minimalist stimulants-plus-nitric-oxide products. Crank 2.0 sits between pump-focused and balanced-performance categories.

Where it excels

• Pump efficiency: 6 g citrulline malate backed by CitraPeak is a strong combination for vascular effects.
• Controlled stimulation: ESN seems to target users who want meaningful stimulation without the raw 300–400 mg caffeine extremes seen in some high-stim formulas.
• Cleaner profile: The removal of arginine and extraneous amino acid grams delivers a more concentrated formula that avoids one-size-fits-all filler.

Where it may not match others

• If you prefer ultra-high stimulant intensity, Crank 2.0 — assuming conservative caffeine per scoop — won’t provide the same jolt as extreme stimulant blends.
• Users seeking significant intra-workout amino acid delivery (BCAAs and large EAAs) will need to supplement elsewhere; ESN prioritized active acute performance ingredients instead.

Real-world competitor comparison (conceptual) People who train late and seek minimal sleep disruption will favor Crank 2.0 over 300–400 mg caffeine “blast” pre-workouts. Those chasing maximum immediate energy spikes might still choose heavier stimulant mixes. For pump-first lifters, Crank 2.0 is a pragmatic choice that avoids unnecessary calories and amino acid volume in favor of clinically relevant pump agents.

Who should use Crank 2.0 — target users and who should avoid it

Target users

• Strength athletes and gym-goers who value reliable pumps and sustained training capacity.
• Intermediate and advanced lifters who want a flexible formula they can scale for heavier sessions.
• Users who prefer less filler and a more targeted ingredient profile.
• Anyone who wants a pre-workout with adaptogens and taurine to smooth the stimulant profile.

Avoid or use caution

• Individuals with cardiovascular disease, hypertension, or arrhythmias because of synephrine and stimulant potential. Consult a healthcare provider.
• Pregnant or breastfeeding people and adolescents.
• Those taking certain prescription drugs (e.g., MAOIs, stimulants, beta-blockers) should seek medical advice.
• People highly sensitive to stimulants should perform a tolerance test (half or single serving) before heavier dosing.

Deciding factors

• If pumps and a measured stimulant profile match your training needs, Crank 2.0 is a logical choice.
• If you require large amounts of intra-workout amino acids, consider pairing with a dedicated BCAA/EAA product or protein shake.

Price, availability, and value proposition

ESN sells Crank 2.0 directly through its online store at €33.90 ($39.44) for a 20-serving tub. A single-sample serving is available at €2.90 ($3.37). Considering the brand’s targeted dosing strategy and the inclusion of a patented pump ingredient, the price sits competitively against mid-market European pre-workouts.

Value considerations

• Cost per serving: €1.70 per serving for the tub, which is comparable to many quality pre-workouts in Europe.
• Ingredient transparency: ESN lists core dosages for several key ingredients, but verify the final label information for precise caffeine content and adaptogen quantities.
• Sample option: The low-cost sample is a practical trial for taste and tolerance, increasing the product’s value proposition by reducing purchase risk.

Where to buy Purchasing directly from ESN ensures authentic packaging and label accuracy. Authorized retailers and sport nutrition shops may carry the product, but buyers should always inspect the Supplement Facts on the tub before consuming.

Practical scenarios: how Crank 2.0 performs in common use cases

Case 1 — Midday weightlifting session A lifter training at lunch wants pumped muscles without afternoon jitteriness that impacts post-work productivity. A single scoop of Crank 2.0 provides citrulline-driven pumps and a controlled stimulant profile; taurine and adaptogens reduce jitter and sustain endurance through superset and compound lift sessions.

Case 2 — Early morning conditioning workout For morning cardio or interval training, the product’s stimulant profile can sharpen focus and metabolic drive. Users sensitive to caffeine should consider a half serving if the product contains a higher single-scoop caffeine amount.

Case 3 — High-volume hypertrophy day On high-rep training days, increased taurine and citrulline malate support endurance and reduce fatigue. Pair Crank 2.0 with intra-workout hydration and electrolytes for longer sessions.

Case 4 — Competition taper or cut phase Synephrine offers mild metabolic stimulation useful during a dieting phase, but competitive athletes should check banned-substance lists for any region-specific restrictions; botanical extracts can vary by jurisdiction.

These scenarios illustrate how Crank 2.0’s balanced profile adapts across training styles while requiring individualized tolerance checks for stimulant components.

Final verdict: Where Crank 2.0 fits in a modern pre-workout lineup

ESN Crank 2.0 takes a decisive step away from filler-rich, large serving-size supplements and toward a targeted, efficient pre-workout. The formulation preserves clinically relevant pump support with 6 g citrulline malate, enhances vascular potential through the addition of CitraPeak, and increases taurine for endurance and smoother stimulation. The inclusion of tyrosine and adaptogens strengthens focus and recovery scaffolding, while synephrine augments the energy profile.

This product appeals to consumers seeking a balanced, pump-forward pre-workout that can be scaled safely with clear single- and double-serving logic. The only meaningful caveat is the inconsistent public description of caffeine content; buyers must check the tub’s Supplement Facts to determine exact stimulant dosing. Assuming label confirmation matches your tolerance and goals, Crank 2.0 represents a modern, streamlined option in a crowded field — especially for lifters who want strong pumps without gratuitous filler or an overwhelming stimulant surge.

FAQ

Q: How much citrulline is in Crank 2.0 and why does that matter? A: Crank 2.0 contains 6 g of citrulline malate per serving, which provides around 4 g of free citrulline. This amount is sufficient to increase nitric oxide production, improve blood flow to working muscles, and support better pumps and reduced fatigue during resistance training.

Q: Is caffeine content safe? How much caffeine does one serving actually contain? A: Public product descriptions contain an inconsistency regarding caffeine. One description lists a “mild 200 mg” per serving, while another suggests that doubling the scoop results in a “strong 200 mg,” implying 100 mg per serving. Always verify the printed Supplement Facts panel on the tub before consumption. If the single serving is 200 mg, that is a high-but-common dose for pre-workouts; if it is 100 mg, double-dosing yields a substantial but standard stimulant amount.

Q: Who should avoid using Crank 2.0? A: Individuals with cardiovascular disease, hypertension, arrhythmias, those pregnant or breastfeeding, adolescents, and people taking certain medications (including beta-blockers, MAOIs, or other stimulants) should avoid Crank 2.0 or consult a healthcare provider before use due to the presence of synephrine and stimulants.

Q: Can I take a double serving of Crank 2.0? A: ESN designed the product so a double serving brings key ingredients into ranges found in many high-strength pre-workouts (e.g., 12 g citrulline malate). However, only experienced users who have confirmed their tolerance to the stimulant content should double-dose. Verify the exact per-serving caffeine number on the tub before using two scoops.

Q: Does Crank 2.0 contain arginine or BCAAs? A: Arginine was removed from Crank 2.0. The formula also reduced the bulk amino acid content that previously contributed to a 19 g serving. ESN prioritized ingredients with stronger evidence for acute pre-workout benefits. If intra-workout amino acids are a priority for your regimen, add a dedicated BCAA/EAA or protein source.

Q: What are the best ways to use Crank 2.0 for maximum effect? A: Mix a single serving with 200–350 mL of cold water and consume 20–40 minutes before training. Start with a single serving to assess tolerance; increase only after confirming stimulant levels and personal response. Pair with proper hydration and, if desired, creatine and beta-alanine as part of your broader supplementation strategy.

Q: Are there flavor options and samples? A: Crank 2.0 is available in four flavors and ESN offers a sample option priced modestly for first-time buyers. The leaner serving size typically produces a more drinkable, less viscous mix compared with bulkier formulations.

Q: Where can I buy Crank 2.0 and what does it cost? A: ESN offers Crank 2.0 through its online store. The brand lists a 20-serving tub at €33.90 ($39.44) and a trial sample at €2.90 ($3.37). Purchasing directly from ESN helps ensure accurate labeling and authenticity.

Q: How does Crank 2.0 differ from other pre-workouts on the market? A: The formula aims for a middle ground between pump-focused and balanced-performance products. It delivers clinically relevant citrulline malate plus a patented citrus extract for vascular support, increased taurine for endurance, and a controlled stimulant blend. It avoids large-serving “kitchen-sink” approaches, focusing instead on ingredients with stronger acute performance evidence.

Q: Is Crank 2.0 suitable for endurance sports like running or cycling? A: Yes — the increased taurine, citrulline malate, and adaptogens can assist endurance capacity and delay fatigue. Be mindful of the stimulant content and time consumption relative to events and sleep, especially if you are sensitive to caffeine or synephrine.

Q: What should I do if I experience adverse effects? A: Discontinue use immediately and seek medical attention if you experience serious symptoms such as chest pain, severe palpitations, shortness of breath, or neurological symptoms. For milder effects like jitteriness or nausea, reduce the serving size and ensure adequate hydration; consult a healthcare professional for personalized guidance.

Q: Do adaptogens like ginseng and schisandra work immediately? A: Adaptogens often exert subtle benefits that accrue over days to weeks. Users may notice small improvements in perceived energy and stress resistance relatively quickly, but sustained use tends to produce the most consistent outcomes.

Q: Is the inclusion of CitraPeak a marketing gimmick? A: CitraPeak is a patented citrus bioflavonoid extract included at a functional dose (200 mg) in Crank 2.0. When combined with citrulline malate, it targets endothelial function and nitric oxide signaling in a way that can complement standard pump ingredients. The ingredient is not a gimmick; it is a targeted approach to augment vascular responsiveness.

If you want a concise comparison chart, a breakdown of ingredient mechanisms by study references, or a sample dosing plan tailored to specific training goals, indicate which option you prefer and I’ll provide a customized follow-up.