Transparent Labs Bulk Review – Can This Pre-Workout Give You Extra Pumps?

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By Jack Cincotta, MS

Reviewed by Juliana Tamayo, MS, RDN - Last Updated

Transparent Labs Bulk Review

Pre-workouts are some of the most popular supplements in the fitness industry, largely due to the bold claims made. After all, what athlete or weightlifter wouldn’t want skyrocketing boosts in energy, performance, and muscle growth?  The problem is, that most of these pre-workout supplements don’t live up to the hype, which is why it’s vital to ensure the product you’re getting actually works.  And in this article, we’ll dive deep into a promising pre-workout called Transparent Labs Bulk. So, look no further than this Transparent Labs Bulk review if you’re wondering what this pre-workout is, how it works, and ultimately how it may benefit you. 

Transparent Labs Bulk Pre-Workout

About Transparent Labs Bulk

Transparent Labs Bulk is a pre-workout supplement from the popular supplement company Transparent Labs. They have produced a wide variety of supplements, including PhysiqueSeries Fat Burner, Transparent Labs ZMO, Creatine HMB powder, Transparent Labs Build muscle gainer, and of course – Bulk Pre-Workout, among many others.Transparent Labs is a company that claims to put forth effort in ensuring full transparency of their ingredients and labels, as well as the claims they make. 

Transparent Labs Bulk combines vitamins, minerals, amino acids, and various plant compounds in a formula to help you become bigger and stronger. They say that this pre-workout supplement sets itself apart from other pre-workout supplements by including a comprehensive formula with time-tested ingredients designed to deliver many benefits beyond just an energy boost. The ingredient list features energizers, anabolic compounds, and muscle-optimizers, among much more.

Transparent Labs Bulk Benefits

With Transparent Labs Bulk Pre-Workout, you do indeed get a fairly unique and multi-faceted product with a variety of benefits. Specifically, this pre-workout formula is designed to increase muscle mass, enhance physical performance, support anabolic hormone production, and increase cognitive function and mental energy. 

Muscle Mass

Various ingredients in Transparent Labs Bulk are designed to result in muscle gain by helping you to get the most out of your workouts and give your muscles the recovery and nutrition they need. Overall, it is a pre-workout designed to support muscle growth.

Enhanced Physical Performance

There are also many ingredients in Transparent Labs Bulk designed to enhance physical performance. For example, it includes citrulline for blood flow, beta-alanine and betaine to increase energy and fight fatigue, and much more.

Transparent Labs Bulk Pre-Workout For Muscles

Hormone Production

Transparent Labs Bulk is also designed to optimize your body’s testosterone production and other natural androgens with a combination of vitamin D, boron, and zinc in clinically dosed amounts.

Cognitive Function

Transparent Labs Bulk is also advertised to improve focus, mental acuity, drive, and other cognitive benefits thanks to caffeine, Alpha-GPC, tyrosine, and more.   

Transparent Labs Bulk Ingredients

Transparent Labs Bulk Pre-Workout contains a wide variety of ingredients. Below, we will take a closer look at each of the main ingredients in this pre-workout formula, their dosages, and what they can provide for your health and performance.

Transparent Labs Bulk Pre-Workout Supplement Facts

Citrulline Malate 2:1 

The first ingredient we’ll take a look at is citrulline malate. Citrulline is commonly used in pre-workouts as it boosts arginine and nitric oxide levels, which may increase blood flow to the muscles. Some research also shows that citrulline malate is also twice as effective as L-arginine in boosting nitric oxide levels. 

It has also been proven to boost anaerobic performance by as much as 53% while reducing muscle soreness by around 40%. Overall, it is pretty effective for improving high-intensity exercise performance. And this, combined with the pump-producing levels of nitric oxide citrulline delivers, makes it one valuable amino acid when it comes to the gym. 


Another rock star amino acid when it comes to boosting exercise performance is beta-alanine, which is necessary for the production of carnosine in your muscles to reduce lactic buildup. Beta-alanine then raises your lactic threshold so that “the burn” isn’t as limiting to your power output as it otherwise would be.

Research shows that beta-alanine supplementation is particularly effective for strength, power, and high-intensity exercise, but also for muscle endurance.

BCAA 2:1:1 (Instantized) (Fermented)

This pre-workout supplement also has Branched-chain amino acids (BCAAs), which are leucine, isoleucine, and valine. These are all essential amino acids tightly involved in muscle protein synthesis. Using the correct ratio of leucine, isoleucine, and valine boosts your body’s anabolic output, increases its metabolism and muscle growth, and reduces tryptophan buildup for more power and energy during your workout. However, BCAAs appear to be more beneficial for reducing muscle soreness and promoting recovery rather than aiding workout performance. 

BetaPure Betaine Anhydrous

Also included is BetaPure, which is a trademarked form of betaine anhydrous. Betaine increases power, anaerobic capacity, and energy while reducing LDL cholesterol, which makes it a key component of this formula. 

It also acts to improve cellular hydration, which can lead to a better environment for the muscles when working out, as well as helping you to achieve that pumped-up feeling.

Other research shows betaine may have beneficial effects on body composition due to its ability to increase anabolism and fat metabolism via many mechanisms, which results in muscle growth and fat loss. 


Now, let’s look at taurine, another amino acid. It helps balance electrolytes in cells, regulates minerals in your body, supports the general function of your nervous system, and helps your muscles work harder. 

In fact, there’s a reason taurine is popular in energy drinks since it helps reduce muscle waste that contributes to “the burn” so that your lactic threshold goes higher.

This also makes it a popular go-to for endurance athletes whose stamina is enhanced by taurine; though more for the purpose of this supplement, it also reduces muscle damage and soreness for faster recovery during strength training. Typically, 1 to 3 grams is effective before training.


Transparent Labs Bulk pre-workout also includes l-tyrosine, an amino acid. It helps in the production of energizing hormones, such as epinephrine and dopamine. And it also increases thyroid hormone. Overall, tyrosine helps boost your energy, focus, metabolism, and sense of reward. But these benefits may only occur if you’re deficient in certain neurotransmitters.

But if you’re deficient, it could help to provide an energy boost while possibly stimulating your metabolism.

AlphaSize Alpha-GPC

This advanced choline (Alpha-Glyceryl Phosphoryl Choline, which is a type of B-vitamin) compound is known for enhancing brain activity for improved focus, concentration, and thinking ability. It also boosts the secretion of HGH and testosterone, which have a direct relationship with each other, and the more of the one you have, the more of the other is produced. 

It does all this by increasing your body’s production of choline, which not only crosses the blood/brain barrier to improve your mental function but increases cellular communication during intense exercise. 


When it comes to staying calm, relaxed, and focused, L-theanine is our friend. It’s an amino acid that pairs well with caffeine to reduce caffeine’s jittery effects so that you can enjoy smooth, plentiful, relaxed energy (no, that’s not a contradiction). Research shows it can improve attention, alertness, and other aspects of cognitive function, particularly when paired with caffeine. 

And since this product has around a boatload of caffeine and other stimulants in it, the addition of L-theanine is essential in keeping you from behaving like a rabid weasel that hasn’t slept in a week. 

Caffeine Anhydrous

No surprise here as this pre-workout has caffeine anhydrous. It’s legal, most of us use it daily, and it gets us wired, so why not? It is a central nervous system stimulant, which improves many different physical and cognitive functions. For example, caffeine can improve exercise capacity, strength, and endurance, along with alertness and focus.

Although, with the equivalent of around 2-cups of coffee along with the other stimulants in Bulk Pre-Workout, you need to mind your other caffeine sources. 

Doing so will help prevent the occurrence of needing to count your bedroom ceiling tiles just one more time before dawn.

transparent labs bulk formula


Caffeine isn’t the only zippy stuff in coffee, tea, and chocolate, since it has a kinder, gentler brother called theobromine. It also may relax blood vessels to lower blood pressure, increase exercise capacity, and boost your vascularity. Yet, more research is needed in specific exercise studies.

Infinergy (Dicaffeine Malate)

This patented combination of 75% caffeine and 25% malic acid is often paired with regular caffeine because it enhances the longevity of caffeine’s effects. 

Basically, it helps you avoid the crash we often associate with caffeine—especially the high amounts in this product. 


This patented extract of astragalus and Panax ginseng not only performs as the potent adaptogens each of these plants are (as in, they adapt to your body’s energy needs via hormone balance), it also improves nutrient absorption

And of course, for a product such as this, that’s important since the amino acids in it not only perform functions of providing energy and hormone balance, but they’re also the building blocks of big, big muscles. Small ones too, but it’s the big ones we’re after here. 

Vitamin D3

Moving on to the vitamins and minerals, let’s take a look at vitamin D3. This vitamin is actually a prohormone and is associated with healthy testosterone levels in men. It is also necessary for healthy bone and muscle function.And some research shows that vitamin D supplementation can increase testosterone levels while also enhancing muscle mass, bone health, and athletic performance. 

Vitamins B6 and B12

Up next are vitamins B6 and B12, both of which are tightly involved in energy production and nervous system health. And sometimes intense exercise can deplete these B-complex vitamins, so supplementation may help prevent deficiencies.


Zinc is a critical mineral for athletes as it is needed for healthy testosterone levels and for recovering from exercise due to its anti-inflammatory effects. 

Sodium and Potassium

Transparent Labs Bulk pre-workout also has sodium and potassium, which are two key electrolytes. They help the muscles and nervous system perform optimally during exercise due to their effects on muscular contractions, nerve impulses, and maintaining fluid balance, among other things. 


Finally, we have boron, which is a mineral important for cognitive function, hormonal support, and decreasing inflammation, among other things. Research shows that supplementation with boron can increase testosterone levels and may aid cognitive performance in some situations. 

Does Transparent Labs Bulk Work?

If you’re looking for more energy, bigger pumps, and faster recovery using an all-natural product, Transparent Labs may have the formula for you in Bulk Pre-Workout. As its name implies, it gets you ready to lift like a madman….er, madperson, since gyms and this product are for everyone, not just big meat-headed dudes. 

But getting back to the product, it seems to be a solid product pre-workout that can improve your workout performance and recovery while increasing nutrient absorption for big muscles.

No, it won’t work as dramatically as, say, shooting up bull testosterone, but then again, it also won’t cause your balls to shrink and you to be an acne-covered ball of rage either. That, and competitors can pee in a cup with full confidence on race day since there’s nothing in here banned by any anti-doping agencies we know of. 

So yes, it does work and is in fact, one of the better all-natural pre-workout formulas we’ve experienced. Beta-alanine, betaine, citrulline, caffeine, and BCAAs are all things you want to look for in a good pre-workout, and Transparent Labs Bulk has these at pretty solid dosages to help you experience increased energy, strength, power, performance, and muscle. 

Transparent Labs Bulk For Pre-Workout Energy

Claims vs. Reality

Transparent Labs does a pretty good job of gaining our confidence, especially since they stick by their word when it comes to the quality and dosage of their ingredients. Therefore, it is likely that Transparent Labs Bulk pre-workout will help to increase muscle mass, gym performance, testosterone/hormone production, and cognitive function, just as they advertise. 

However, these effects will likely be mild to moderate since this is what’s typically seen in the research (e.g., maybe you can pump out 1 to 2 more reps, lift 5 more pounds, or go for 10 minutes longer). 

So yes, high marks for Transparent Lab’s credibility and this product’s efficacy. 

Who is Transparent Labs Bulk Best For?

Though this product contains clean, all-natural ingredients, it’s probably best for those 18-and-over. It does have concentrations of compounds that can enhance androgen production—not to mention enough caffeine to turn a sloth into a hummingbird—so developing endocrine systems and minds should probably stay clear. 

On the other hand, it’s not just for gym rats or men only, since endurance athletes and others can benefit from a higher lactic threshold, increased energy, and intense focus, and there’s also nothing in this formula that women can’t benefit from too. 

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Is Transparent Labs Bulk Safe?

Let’s start with the obvious here, which is that Transparent Labs Bulk has a lot of caffeine and other stimulants in it. Of course, this can affect even those not sensitive to caffeine since too much of it can make nearly anyone cranky, jittery, and wide awake when they need sleep. 

Granted, there are compounds in the formula, such as L-theanine, which counter caffeine’s effects and help you relax mentally, though nothing to ease the speediness that can cut into sleep time. 

That, and there’s always the chance that some may be sensitive or allergic to Bulk Pre-Workout’s other ingredients, in which case, there’s a generous 90-day 100% money-back guarantee for you to take advantage of—nice!

Other than that, there’s always the possibility of stomach upset, nausea, and other gastrointestinal symptoms. 

Headaches and dizziness are possible too. 

On a good note, this pre-workout is also free from artificial sweeteners, color, and preservatives. Plus, it’s gluten-free and non-GMO. 

Where to Buy Transparent Labs Bulk

You can buy Transparent Labs Bulk pre-workout on the main Transparent Labs website at this product link. Clean, quality ingredients do come at a high cost, though. 

transparent labs bulk website

Each container has 30 servings and costs $49.99. You can also choose to subscribe and save, which will bring the cost down 15% to $42.49. There are also 8 different flavors to choose from, such as blue raspberry, strawberry lemonade, watermelon, and tropical punch. 

So, it comes in pretty expensive at $1.67/serving. But they also recommend you start with half of a scoop, so that could potentially save you money if you only need that dose. (Then again, some may need more than one scoop). 

Overall Rating:
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Jack Cincotta, MS

Jack Cincotta is a certified holistic health coach through AFPA and a board-certified holistic health practitioner through AADP. He has written hundreds of articles on nutrition and supplementation. Jack has a M.S. degree in Psychology and is passionate about researching the science behind nutrition. He often uses research-backed supplementation protocols for many of his clients to optimize results.