The Pump: Pitbull Labs to Deliver True Workout Power

2019 Update: Pitbull Labs unfortunately went dormant for a while, but rumors are that they’re coming back…. stay tuned and sign up for our Pitbull Labs News alerts to learn when they’re officially back!

Pitbull Labs The Pump

The Pump from Pitbull Labs is a fully loaded stimulant free nitric oxide boosting, pump swelling pre workout.

The Pump.

Nothing is more glorious, satisfying, or exciting than the vaunted muscle pump. For decades, bodybuilders, bros, and average joes have chased the pump, some (such as a gentleman named Arnold) going so far as to compare it to orgasm. But an explosive pump that could could never be had with total consistency… until now.

Scrappy upstart Pitbull Labs has finally released its stimulant-free pre workout that makes achieving the pump all the more easy, each and every time. Toss back one scoop of The Pump and you’ll have everything you need to achieve raging bicep rocks and more. It stacks seamlessly with the simply-title Pitbull Labs Pre Workout to form an unbeatable workout combo of mood, motivation, focus, energy, and, yes, pumps.

We’ve got all the details down below, but first, take a moment to check PricePlow’s deals and coupons and sign up for Pitbull Labs news alerts:

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The Pump Ingredients

The Pump is all about ramping up nitric oxide production and keep it elevated during and after training, providing some of the densest, most massive pumps you’ve ever witnessed.

  • L-Citrulline (4g)

    Pitbull Labs The Pump Ingredients

    The Pump contains 4 perfectly dosed ingredients to provide some epic pumps during your training sessions.

    Kicking off the cavalcade of muscle-gorging supplements is none other than the lead pump-inducing ingredient of today — L-Citrulline. Included here at a full 4g, L-Citrulline is a powerful driver of nitric oxide production, due to its ability to increase arginine levels in the body more effectively than L-Arginine.[1] This means better NO production, leading to improved blood flow, enhances vasodilation, and… some monstrous pumps!

    Citrulline isn’t just for looks either, it also boosts endurance, supports lean body mass, and improves energy production, all helping you make better gains.[2,3]

    At 4g, we’re off to a great start, but there’s another well-dosed beast up ahead:

  • Nitrosigine (1.5g)

    Most avid supplement users are aware of the fact that plain old L-Arginine does next to nothing for increasing your serum arginine levels or muscle pumps. But that’s where Nitrosigine comes into play.


    Move over arginine, Nitrosigine actually makes it work as originally desired!

    Developed by Nutrition21, Nitrosigine is an enhanced form of Arginine consisting of inositol-stabilized arginine silicate. This unique combination of arginine, inositol, and silicate improves arginine’s bioavailability, making for a form of arginine that actually increases N.O. levels in the body immediately after consumption and for a period of up to 2 weeks post supplementation.[4]

    The Pump includes the full clinically-backed dose of 1.5g,[5] which is 2-3x what you get in most other pre workouts on the market.

    Finally, an arginine that works, dosed at effective levels. We don’t always feel ~500mg of this stuff, but with 1.5g worth, we absolutely do!

  • Capros (250mg)

    Capros Logo

    Capros is one of those underrated vasodilating ingredients that we don’t see enough of in pre workouts.

    Developed by Natreon Inc., Capros is a patented extract of Indian Gooseberry (Phyllanthus emblica), a “superfood” that touts an ORAC value of 47,000 µmoles TE/g. More commonly known as amla, Indian Gooseberry has been used for centuries in Ayurveda for its numerous benefits including: antidiabetic, antibacterial, antioxidant, hepatoprotective, and hypolipidemic properties.[6]

    But what about for chasin’ those pumps?

    Pitbull Labs Charity

    Pitbull Labs backs their bark up with their bite, by giving to Pitbull-related charities!

    Studies using Capros demonstrate it significantly improves endothelial function, reduces biomarkers of oxidative stress, and enhances cardio-respiratory function.[7,8] This helps deliver more oxygen and nutrients to working muscles during training, supporting explosive muscle pumps during your workout. It also means more anabolic nutrients are driven into your muscles during your workout for better gains.

  • L-Norvaline (200mg)

    To sustain your workout pump during and for hours after your workout, The Pump includes L-Norvaline. As an inhibitor of arginase,[9] the enzyme that degrades arginine, L-Norvaline promotes sustained, enduring nitric oxide production that allows for stronger, longer-lasting pumps all day long.

On the Formula

”So we went with 4g of pure citrulline, many people think 6g is where the studies are, however that is citrulline bonded to malic acid at a 2:1.

Also we hope people are drinking BCAAs intra workout, and PBLs BCAA also includes 2g of pure citrulline… just saying.

Nitrosigine is one of my favorite ingredients period. As per other expensive, clinically studied ingredients, it is often sprinkled in prop blends and under-dosed. 1500mg is where the real in vitro data is, which includes actual muscle biopsies – if you don’t know what that is, this is where they literally remove live tissue samples and exam its impact (shudder).

There is more data coming out showing it potentially has some neurotrophic properties, however the real reason its in here is it relaxes blood vessels which allows increased muscle blood flow and significantly increases plasma levels arginine, which plays a major role in nitric oxide synthesis. It also has bedroom related benefits…

Combined with Citrulline, this leads to relaxed and primed blood vessels ready to get pumped full of nitric oxide!

Perfect right? Well no, as usual our body wants to fight those gains!

As such it produces an enzyme called arginase that prevents your body making nitric oxide! That’s why we went the extra mile and included the arginase inhibitor L-norvaline.

Capros is a patented extract of the indian gooseberry. Its major function is to help deliver more oxygen to working muscles which results in more nutrient rich blood and an even greater pump. Now it is also a “super fruit” extract and has antioxidant and free radical scavenging properties.

Then we have the usual blend of chelated minerals and sodium to help hydrate the muscles.” — Pitbull Labs

Flavors Available

Pitbull Labs The Pump Pre Workout

Want some added energy during your training session? Combine Pitbull Labs Pre Workout with The Pump for a complete pre workout experience

Similar to Pitbull Labs Pre Workout, The Pump comes in two flavors. Those two flavors happen to be the exact same flavors as you’ll find with Pitbull’s Pre to make flavor matching as seamless as possible, creating a pre workout combo that is both effective and tasty as hell!

The two flavors you’ll find The Pump in are: Blue Raz and Cherry Limeade.


Pitbull Labs The Pump is simple, straightforward, and effective as all get out. One scoop of this, and you’ll have a hard time not achieving a monster pump during your warm up sets. On its own or stacked with Pitbull Labs Pre Workout, you’ll be extremely pleased with your pumps and performance.

And if you want even more Citrulline (or just a “lighter” pre workout), feel free to sip on a scoop of the brand’s BCAA Stim during training, which contains an additional 2g of L-Citrulline!

Pitbull Labs The Pump - Deals and Price Drop Alerts

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Disclosure: PricePlow relies on pricing from stores with which we have a business relationship. We work hard to keep pricing current, but you may find a better offer.

Posts are sponsored in part by the retailers and/or brands listed on this page.

Check if you can’t find The Pump on PricePlow!

About the Author: Mike Roberto

Mike Roberto

Mike Roberto is a research scientist and water sports athlete who founded PricePlow. He is an n=1 diet experimenter with extensive experience in supplementation and dietary modification, whose personal expertise stems from several experiments done on himself while sharing lab tests.

Mike's goal is to bridge the gap between nutritional research scientists and non-academics who seek to better their health in a system that has catastrophically failed the public.

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  1. Curis E., et. al; “Citrulline and the gut;”; Current Opinion in Clinical Nutrition and Metabolic Care; September 2007;
  2. Bailey SJ, Blackwell JR, Lord T, Vanhatalo A, Winyard PG, Jones AM. “L-Citrulline supplementation improves O2 uptake kinetics and high-intensity exercise performance in humans.”; J Appl Physiol (1985). 2015 Aug 15;119(4):385-95;
  3. Pérez-Guisado J, Jakeman PM; “Citrulline malate enhances athletic anaerobic performance and relieves muscle soreness”; J Strength Cond Res. 2010 May;24(5):1215-22;
  4. Kalman, D; “A clinical evaluation to determine the safety, pharmacokinetics and pharmacodynamics of an inositol-stabilized arginine silicate dietary supplement in healthy adult males”; Nutrition & Endocrinology Miami Research Associates; 2014;
  5. Rood-Ojalvo S, Sandler D, Veledar E, Komorowski J; “The benefits of inositol-stabilized arginine silicate as a workout ingredient”; Journal of the International Society of Sports Nutrition. 2015;12(Suppl 1):P14;
  6. Krishnaveni M, Mirunalini S. Therapeutic potential of Phyllanthus emblica (amla): the ayurvedic wonder. J Basic Clin Physiol Pharmacol. 2010;21(1):93-105;
  7. Usharani P, Fatima N, Muralidhar N. Effects of Phyllanthus emblica extract on endothelial dysfunction and biomarkers of oxidative stress in patients with type 2 diabetes mellitus: a randomized, double-blind, controlled study. Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy. 2013;6:275-284. doi:10.2147/DMSO.S46341.
  8. Biswas TK, Chakrabarti S, Pandit S, Jana U, Dey SK. Pilot study evaluating the use of Emblica officinalis standardized fruit extract in cardio-respiratory improvement and antioxidant status of volunteers with smoking history. J Herb Med. 2014;4(4):188-194;
  9. Mihail V. Pokrovskiy, Mihail V. Korokin, Svetlana A. Tsepeleva, et al., “Arginase Inhibitor in the Pharmacological Correction of Endothelial Dysfunction,” International Journal of Hypertension, vol. 2011, Article ID 515047, 4 pages, 2011. doi:10.4061/2011/515047

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