Transparent Labs Pre-Workout | PreSeries BULK Review (2021)

With numerous pre-workouts that cause more side effects than results, it’s difficult to find the best supplement that would fully support your athletic performance.

I know how you feel, I’ve tried dozens of pre-works, experienced painful and annoying side effects, and wasted a lot of money for nothing.

I was ready to give up, which would be a mess since my life depends on it. I would have to change my career or continue taking supplements that gave me a blue tongue and headaches day after day.

TL LogoBut I was stubborn enough and by accident discovered Transparent Labs. They quickly caught my eye, and I decided to give them a try for one very specific reason.

Their PreSeries Bulk supplement had something I was looking for for a long time. Their list of clean and natural ingredients had me hooked.

But is BULK really as effective as it claims?

Or is it just another headache-causing, sweet-tasting powder that’s a complete waste of money?

Read on to find out about my personal experience with this supplement and find out if this is the best pre-workout or NOT

What is Transparent Labs Preseries Bulk

Transparent Labs Preseries Bulk

Preseries Bulk is a pre-workout supplement, manufactured and sold by TransparentLabs brand.

The brand claims that the supplement contains 19 scientifically backed components with dosages that are clinically effective without any nasty fillers or harmful additives.

The brand is transparent and honest about what they put in their products, which is how they got on my radar in the first place.

The supplement is vegan-friendly and designed for serious athletes who want to build muscle and bulk up. What’s more, here’s what you can expect after taking the recommended serving of Preseries:

  • Enable you to train longer and harder
  • Improve strength and endurance
  • Increase protein synthesis
  • Increase lean body mass
  • Decrease fat
  • Improve muscle growth and body composition
  • Reduce fatigue and muscle recovery
  • Improve mental focus and alertness
  • Reduce stress and promote relaxation has other products available that focus more on fat loss, protein intake, prebiotics, and more.

Other popular products are ZMO (for testosterone, better sleep, and improved performance) and BCAA Glutamine (powder for recovery and repair).


Ingredients in Transparent Labs Preseries Bulk Fat Burners?

TL Preseries Bulk

Preseries BULK contains 19 ingredients and comes with 30 servings of 22.08g per serving. They list their components and the amounts used in the supplement. Unlike many other brands out there, the supplement doesn’t contain any

  • Proprietary blends
  • Artificial sweeteners, coloring, preservatives
  • Hidden components
  • The supplement is vegan-friendly, gluten-free, and non-GMO

Let’s have a look at the complete list of ingredients used in BULK Pre-work!

Citrulline malate

This is a common ingredient in most pre-works today. It helps to build strength, boost endurance, athletic performance, and increase blood flow.


Beta-alanine is an amino acid that minimizes fatigue, enabling you to train longer and harder. It contains a solid dose of this component, which helps you build lean muscle mass with time.


A 2:1:1 blend of Leucine, Isoleucine, and Valine helps with protein synthesis, reduce body weight (weigh loss), increase endurance and improve muscle recovery while giving you a boost of energy to push the workouts further.

Betaine Anhydrous

This is an amino acid that you can get naturally from greens, beets, and quinoa. It helps to improve performance, grow muscles, and build endurance.


This is another essential amino acid, but our bodies can’t produce it, so we have to get it from other sources. It helps to reduce cell damage, increase muscle performance, and has many health benefits for our bodies.

TL Ingredients

N-Acetyl L-Tyrosine

N-Acetyl has been shown to improve sleep, boost mental focus, memory, and concentration.

Choline Bitartrate

With a number of health benefits, this nutrient is produced in our bodies but in a very low amount. It improves heart health, memory, and much more.


Another amino acid, L-Theanine, promotes relaxation, minimizes stress, increases focus, improves sleep, and immunity.

Caffeine Anhydrous

If you’re wondering what are stims in Bulk Pre-work, this is it. Caffeine is a common ingredient in many pre-workouts because it improves alertness and focus, minimizes fatigue, and improves concentration.

Mucuna Pruriens

Commonly included in products that boost testosterone, this component also helps to increase the circulation of the hormone Dopamine in the brain. 


L-Norvaline promotes nitric oxide production in the body. That means it boosts blood flow to the muscles, providing them with oxygen and nutrients. It also helps to speed muscle recovery time that.


You can get synephrine from plants; this substance boosts metabolism and lose excess fat.


An alkaloid that helps to increase alertness and boosts energy levels. it has many other health benefits for people as well.


BioPerine is a nutrient from black pepper. It increases the absorption rate of other nutrients, boosts metabolism, improves memory and the immune system.

Testosterone support

Apart from Mucuna Pruriens, there are a few other minerals that help to increase testosterone production (testosterone support complex) in the body: vitamin D3, zinc, and boron.

Transparent Labs product improves concentration, memory, sleep quality and contains essential amino acids that improves performance and endurance and promotes lean muscle mass!

Is TransparentLabs Keto Friendly?

A single serving of BULK pre-workout calories count is 16. The only ingredient in the BULK pre-work that contains carbs is the BCAAs.

Transparent Labs Bulk vs Lean (Reviews)

Vs Lean

Bulk was designed to build muscle while Lean supports getting lean muscle mass. They both have similar benefits but essentially its formula is designed the same with certain variations.

Both Bulk and Preseries Lean contain the same components but the amounts differ:

Both contain 6,000 mg citrulline malate

Contains 4,000 mg BCAA – Lean 2,000 mg BCAA

It has 4,000 mg beta-alanine – Lean has 1,500 mg

Contains 2,500 mg Betaine – Lean 1,000 mg Betaine

Bulk has 1,300 mg Taurine

None of these two contains creatine, and they both pack these ingredients: N-acetyl L-Tyrosine, Choline Bitartrate, Mucuna Pruriens, l-Norvaline, BioPerine (black pepper extract).


Bulk Pre Workout vs Jym

Bulk Vs Jym

These two workout supplements are pretty similar in what they help to achieve, but they do it with slight variations of dosages and ingredients. Here are their benefits:

  target muscle building process with BCAAs, beta-alanine (higher amount in Bulk), and betaine (higher amount in Bulk)

boost pump, but Bulk helps to prolong it with L-Norvaline (which is more effective than the beetroot extract in JYM)

pack stimulants to make workouts even more effective. Bulk contains a better formula with cleaner ingredients that cause no crashes or jitters. JYM has a solid formula but can cause jitters in all who aren’t used to high caffeine doses (300 mg)

Other ingredients: Bulk has the cleanest formula of the two (natural flavor, stevia, calcium silicate, silicon dioxide) while JYM pre-workout contains some ingredients, strawberry lemonade flavor that health-conscious users will probably choose to avoid (dextrose, natural and artificial flavors, sucralose, Acesulfame potassium, calcium silicate, FD&C red #40)

Is Transparent Labs Pre Workout Safe?

Preseries is safe for most people. It contains only clean ingredients which is a rare thing in the supplement world.

I decided to try this pre-work because it doesn’t contain any harmful, mysterious, and artificial ingredients.

Transparent labs logoI’ve successfully tested Pre series when I first got my hands on it and have recommended it to friends and clients.

I have never experienced any side effects or issues; I’m pretty sure it has one of the cleanest formulas out there, and I’ve tested a lot of pre-works in my career.

The only side effects I noticed normally happen with people who are completely new to pre-workout supplements and have never tried any. And even these were mild; an occasional headache, a few jitters, and that’s about it.  

What is the Difference Between Bulk, PreSeries LEAN, and Stim Free?

Lean Bulk Stim Free

All three products are very effective and make a great addition to workouts.

All 3 of these supplements boost muscle pump,  improve focus, endurance, but their formulas are somewhat different from one another.

I’ve already mentioned the difference between Bulk and Lean above, so let’s have a look at how Stim-Free series compares to the other two:

Preseries Stim-free also contains 6 grams of L-citrulline per serving, combined with beta-alanine, betaine, BCAAs, and a blend of components that boost focus, energy, and mental clarity

All three contain N-acetyl L-Tyrosine, Choline Bitartrate, Mucuna Pruriens, L-Norvaline, BioPerine (black pepper extract)

Here’s what makes Preseries STIM-free different from the other two:

Has 6,000 mg BCAAs per serving in the 2:1:1 ratio

Contains 3,000 mg creatine HCL per serving

Free of any stimulants (caffeine free)

Contains ingredients that improve focus, cognition, and promote mental boost

When and How to Take It?

Take one scoop as per the company’s guidelines and mix with 6 to 8 oz of water. Take it about 20 to 30 minutes prior to exercise. When you use this product for the first time, you are encouraged to start with a half dose so that you can examine your limit to the stimulants that it contains; once you are concluded that you can tolerate the components, you can go to a full dose for enhanced power.

Make sure you never use more than 2 scoops in 24-hour time and attempt to avoid doing this product in the 2nd half of the day due to the stimulant that may affect your sleep quality.

What is the Сleanest Pre Workout?

It’s… this! But we don’t want to give away the whole recipe. What is the cleanest pre-workout? We’ll leave that to you to decide! In a drink mixer or blender (about 2:30 for the whey + 1:30 for the maple syrup) add the 1 scoop protein powder. We suggest the Hy-Vee brand; it’s reasonably priced and it seems to be very good quality. You can adjust the protein to 1 scoop for 9g or 1 scoop for 15g. Make sure you shake thoroughly. If you’re shaking on a well-air-conditioned kitchen counter, be sure to get in the refrigerator once you’ve finished to break up the protein. Pour 1/2 cup of water into a glass and mix it thoroughly.

Then add the peanut butter and the rest of the water to the glass. Now give it a good shake so that all of the protein powder dissolves. Then pour into a glass container with a lid. The cookie jar works perfectly for us. We put this in the freezer until frozen solid so that it won’t splatter. We also put the container in the freezer until the whey has frozen solid so that we can scrape the frozen peanut butter from the container into the trash. If you’re worried about freezer burn, make sure to put a piece of foil on top of the container. Unwrap your slice of cheese and separate it into the plastic baggies.

Can Pre-Workout Mess Up Your Kidneys?

So you’ve started your kids on these capsules as a supplement. It’s better for them, and it’s less expensive. Except … what if you haven’t read enough about it? Because some prescription studies have shown that “they aren’t great at preserving kidney health. In fact, myron D. Nichols, PhD, a urologist at UT Southwestern Medical Center, told Time.

If you look at the human studies on them, you’re talking about just a minimal decrease in proteinuria, which is just the protein that’s released into the urine, and is generally associated with kidney injury.” And that seems to make it tough for parents to know for sure if they’re helping their kids’ kidneys, or doing more harm than good. Even if a product says it’s certified for kidney safety, it doesn’t always mean it has gone through rigorous.

What is The Best Price & Where to Buy Preseries Bulk?

TransparentLabs pre-work supplementation is designed with selected ingredients that are not only clean but also effective and backed up by science.

Truly, I was surprised to notice such transparency from a brand; it is quite rare to find a clean product without any fillers and artificial ingredients.

add to cart / buy / free shippingYou can easily buy it in most online retailers, such as GNC, Amazon, and many others.

If you’re lucky, you can also get a discount code or a coupon for your order that allows you to save money when looking for a pre-workout for sale.

While any supplement of Transparent Labs will give you the mental boost, improve your energy levels, power, and eventually build endurance, I have to say that it’s not the best you can get.

Don’t get me wrong; the product is well designed with a solid background.

It really is okay, and it works as described. I used it for about a month, and it delivered, but I just kept missing something.

It’s effective in terms of benefits, but I kept missing that oomph that I normally get with the best supplements. I was disappointed that I wasn’t able to feel it.

Transparent Labs has many devoted users, but it hasn’t managed to awake the animal roar I normally feel with 4 Gauge Pre-work, which is an alternative to TL.


Transparent Labs Review – Final Words

I tested and reviewed both supplements on myself and later with my clients. And the majority of them decided for 4 Gauge with the same argument: it helps to elevate workouts to a different level in an unexplainable way.

Apart from that, 4 Gauge supplement is also designed with only the cleanest ingredients. It’s vegan-friendly pre-workout, and with a killer formula, I get better and even more skin-tearing pumps, roaring energy with more focus and power.

It helped me tone and build lean muscle, and it effectively boosts power while bodybuilding.

4 Gauge has become a crucial part of my stack after the results I was able to achieve. It doesn’t have the best flavor, but it also isn’t taurine free, and it gives motivation on the lazy days to keep pushing, and it’ll provide support in the early hours of the morning and late afternoon when you get off work.

***Statements contained herein have not been evaluated by the Food and Drug Administration (FDA). This product is not intended to diagnose, treat, cure or prevent any disease***