8g Citrulline, 300mg Paraxanthine, No-Hidden-Stuff Power
Core Nutritionals Energon Pre-Workout is a solid, no-BS pre that's all about big pumps, fighting fatigue, and clean energy without dumping a ton of caffeine. No hidden blends here—everything's out in the open. You've got 8g L-citrulline for better blood flow and pumps, 3.2g beta-alanine to build up carnosine and push back against burnout, 2.5g betaine anhydrous for more power and stamina, plus a focus and energy mix with enfinity® paraxanthine, Cognizin® citicoline, N-acetyl L-carnitine, huperzine A, Senactiv®, and VasoDrive-AP®.
The star is 8,000mg L-citrulline—that's a real dose that stands out from the weak stuff. Citrulline boosts arginine levels better than taking arginine straight, which ramps up nitric oxide for wider blood vessels, better flow, and more nutrients to your muscles. Studies show it helps with blood flow and performance, and this amount is legit, not the skimpy 3-4g you see for show. In the gym, you'll notice bigger pumps, muscles feeling more fueled, and that locked-in vibe as you get going.
Beta-alanine hits 3,200mg, the dose backed by research. It loads your muscles with carnosine, which fights acid buildup during tough reps. That means less of that burning feeling that cuts sets short. It shines in workouts lasting 1-10 minutes, like hypertrophy sets, supersets, intense intervals, or long reps. Right away, you might feel the tingle. Over 2-4
Key Highlights
- 8,000mg L-Citrulline — this is the real deal dose that you'll actually feel. It boosts arginine to crank nitric oxide, opening up blood flow for better oxygen, nutrients, and that full pump that sticks around during your lifts.
- 3,200mg Beta-Alanine — the proven dose that builds muscle carnosine over time. More carnosine fights off acid buildup, so you push harder through repeat sets, intervals, and those 1-10 minute grinds without burning out fast.
- 2,500mg Betaine Anhydrous — spot-on for the research, helping with power, stamina, and keeping cells hydrated. It's a sleeper hit in pre-workouts because it boosts your output without just cranking up stims.
- 300mg enfinity® Paraxanthine — a fresh take on energy that beats basic caffeine blends. It's caffeine's main breakdown product, and folks say it feels smoother, more focused, with less crash.
- 250mg Cognizin® Citicoline — a top-shelf nootropic dose backed by studies on attention and movement. It ramps up acetylcholine for laser focus, better task lock-in, and stronger mind-muscle feel during complex or high-rep work.
- 1,000mg N-Acetyl L-Carnitine HCl — a hefty hit for brain energy and focus support. It teams up great with citicoline and huperzine A, making the mental side deeper than just a stim buzz.
- 254mg VasoDrive-AP® — fancy peptides from casein that back up citrulline with extra blood vessel support. You don't see this in cheap pre's—it's a sign this one's built for real gains, not just looks.
- 50mg Senactiv® — a patented plant extract that helps with cell energy and bouncing back. It adds staying power, making this more than your basic pump-and-stim mix.
Who Is This For?
- Bodybuilders in volume-heavy phases who need a pre to keep reps strong after the early exercises, not just a quick hype. 8g L-citrulline and 254mg VasoDrive-AP® deliver big, lasting pumps, while 3.2g beta-alanine fights burnout in repeat sets.
- Mid-to-advanced lifters on push/pull/legs or upper/lower who dig focus as much as energy. 300mg enfinity® paraxanthine, 250mg Cognizin® citicoline, 1g N-acetyl L-carnitine, and huperzine A sharpen execution, mind-muscle link, and cut mid-set distractions.
- Strength folks in build-up phases needing bar speed and volume after mains. 2.5g betaine anhydrous boosts power and capacity, beta-alanine buffers fatigue in packed sessions.
- High-stim fans who hate the jitters from caffeine bombs. Enfinity® paraxanthine gives strong energy that often feels smoother and more workout-ready than basic caffeine.
- Morning crew needing quick wake-up and full-session lock-in. The stim and focus mix perks you fast, blood flow and endurance keep it from dropping after warm-ups.
- Cutting athletes wanting to hold onto pump, intensity, and headspace on low cals. Citrulline, betaine, paraxanthine maintain drive, focus stack helps when diet drag hits.
How to Use
Mix 1 scoop in 10-16 oz cold water and sip 20-30 minutes pre-gym. That lines up the energy and focus while pumps build during early sets. If paraxanthine or high stims are new, try half first to check how it sits.
Use a shaker for even mix—multi-ingredient pre's blend better that way. Too strong flavor? Add water; it won't weaken the goods. Best on an empty stomach or after a light snack 60-90 minutes out, since heavy food slows the kick.
Don't stack with other pre's, burners, or big stims—300mg enfinity® paraxanthine is already potent. Creatine, intra carbs for long hauls, or post protein fit great. No need to cycle citrulline, betaine, or beta-alanine, but check if stims feel weaker over time and ease off. Keep it sealed cool and dry for best powder.
What to Expect
Minutes 0-10: right after mixing and drinking, the mental side hits first. It goes down easy, and beta-alanine tingles might show if you're prone.
Minutes 10-20: paraxanthine and nootropics bring alertness, that urge to train, and clearer headspace. You feel pumped to go, focused on the work, less distracted.
Minutes 20-40: prime time for most workouts. 8g citrulline shines as flow picks up, pumps build, and the brain stack sharpens your moves.
Minutes 40-90: where good pre's shine, and Energon delivers. Energy holds steady, focus doesn't crash like plain caffeine, and pump plus stamina keep paying off late.
Days 1-7: you'll figure out your vibe with paraxanthine and tingles fast. Pump, focus, energy hit day one; beta-alanine's endurance builds slower.
Weeks 2-4: that's when it really clicks. Muscle carnosine from daily 3.2g beta-alanine makes hard sets easier to handle, and the pre feels more reliable session after session.
Key Ingredients
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L-Citrulline — 8000mg — Clinical pump dose for bigger blood flow and endurance
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Beta-Alanine — 3200mg — Buffers the burn so hard sets stay productive
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Betaine Anhydrous — 2500mg — Supports power output, training volume, and cell hydration
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enfinity® — 300mg — Cleaner high-stim energy built around paraxanthine
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VasoDrive-AP® — 254mg — Premium peptide support for deeper vascular performance
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Cognizin® Citicoline — 250mg — Research-backed focus support for sharper training execution
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N-Acetyl L-Carnitine Hydrochloride — 1000mg — Adds mental energy and cholinergic support
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Senactiv® — 50mg — Supports cellular energy and workout durability
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Huperzia serrata Extract — 10mg (1% Huperzine A) — Extends focus by slowing acetylcholine breakdown
Frequently Asked Questions
How much stimulant is in Energon Pre-Workout?
Energon contains 300mg enfinity® paraxanthine per scoop. The exact caffeine-equivalent feel varies by individual, but this is firmly a high-stim pre-workout and should be treated as such, especially if you also use coffee, energy drinks, or fat burners.
Is Energon fully transparent or does it use a proprietary blend?
It is fully transparent. Every key active is disclosed with an exact dose, including 8g L-citrulline, 3.2g beta-alanine, 2.5g betaine, 300mg enfinity® paraxanthine, 250mg Cognizin® citicoline, and 254mg VasoDrive-AP®.
Why does this formula use paraxanthine instead of regular caffeine?
Enfinity® paraxanthine is the primary metabolite your body produces from caffeine, and many users report a cleaner, more focused performance feel from it. In practical use, it is often chosen to provide strong alertness and drive with less of the rough jitter-crash pattern some people get from caffeine-heavy formulas.
Will Energon make me tingle?
Possibly, yes. The formula contains 3.2g beta-alanine, which is the classic clinical dose and commonly causes a harmless tingling sensation called paresthesia in some users, especially when taken on a relatively empty stomach.
How long before training should I take Energon?
Most users will do best taking it 20-30 minutes pre-workout. That allows the paraxanthine and nootropic layer to come online before training while the citrulline-supported pump effect becomes more apparent as exercise begins.
Do I need to take Energon every day for it to work?
The energy, focus, and pump effects are acute, so you’ll feel those on day one. But beta-alanine works through muscle carnosine loading, so consistent use across weeks is what unlocks its full endurance and fatigue-buffering value.
Is this a good pre-workout for pump-focused training?
Yes, very much so. The 8g L-citrulline dose is serious by category standards, and the addition of 254mg VasoDrive-AP® gives the blood-flow side of the formula more depth than many stimulant-forward pre-workouts.
What should I stack with Energon?
A standalone creatine monohydrate is the smartest addition for most users because this formula does not include creatine. Creatine supports rapid ATP regeneration, which pairs well with beta-alanine’s acid buffering and betaine’s work-capacity support.
Does Energon contain allergens?
Yes, it contains VasoDrive-AP®, which is derived from hydrolyzed milk casein. Anyone with a milk allergy should avoid it unless cleared by a medical professional.
Is Energon good for evening workouts?
Only if you have exceptional stimulant tolerance. With 300mg enfinity® paraxanthine, this product is more naturally suited to morning or afternoon training because it can interfere with sleep in stimulant-sensitive users.
