Transparent Labs Preseries Bulk Pre Workout Review: 21g of Ingredients For Gains

By Nader Qudimat
Last Updated July 25, 2020
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When you look at a pre workout like PreSeries Bulk, it's hard to find the downsides.

It's dosed incredibly well for enhancing workout performance and cognitive function, leaving you with greater energy to workout harder and longer.

Bulk even contains minerals and minerals that can enhance testosterone production, a rare inclusion in pre workouts.

To top it off, it contains no artificial colors, preservatives or coloring, making this one of the most future-proof pre workout's we've seen to date.

Starts at 45$ with coupon code FITFREK



Increases focus and performance with a unique blend of stimulants and virtually every ergogenic.



Cheaper per serving than most mainstream pre workouts. Buy more than 1 to save.



TL packed 14 ingredients that are clinically dosed and shown to help pack on mass.



Available in the US but ships worldwide.

PreSeries Bulk: Who Is Transparent Labs?

Transparent Labs may sound like any other supplement company.

Hopefully it's not another “labs” company, am I right?

But they are much more than that.

Just like their name, they are super transparent about their supplements and formulate everything with full dosages without using any artificial ingredients (uses only natural colors and flavors).

This Utah-based company is one of the most recommended when it comes to clinically dosed supplements. 

You won't find Transparent Labs supplements on Amazon, eBay, GNC, Walmart or really any small or big retail stores.

But they are easy to get as they ship worldwide.

And seeing how they don't need retailers to be as popular as they are, that should be a good sign of a company that has a huge loyal customer base.

PreSeries Bulk is one of their 3 pre workouts and it's one worth looking at.

So we're going to dissect it, break down the ingredients and let you know what you should (and shouldn't) expect.

PreSeries Bulk Benefits

Bulk features a full disclosed label, even the “other / inactive” ingredients have dosages.

From endurance, pump inducing to strength / muscle growth ingredients and testosterone support

Very few pre workouts have been successfully using the same formula for more than 5 years in a row.

The unique aspect of this formula is the testosterone blend.

It uses natural ingredients to enhance the “natural” production of testosterone.

And it seems other sites seem to place this pre workout high on their list.

Being future proof and having the best ingredients possible in a pre workout, PreSeries Bulk is undoubtedly going to be a top choice for years to come.

There's a few things that make this one stand out from other pre's:

Transparent Labs Bulk Price

Considering how much PreSeries Bulk packs, it's price shouldn't be a surprise.

It's priced at 49$.

But with the 10% off coupon, it's still cheaper than Pre Kaged and Pre Jym ($1.74 vs Bulk's $1.4 per serving) (use this coupon code: FITFREK).

And as the same suggests, Bulk is made for those who have the goal of gaining muscle.

You may find cheaper pre workouts but they contain half the dosages and require double servings for full dosages most of the time. Or they are a blend of stimulants.

Any pre workout that contains as much as Bulk will have the same pricing structure.

For cutting, they have PreSeries Lean, which features nearly the same ingredients except with a thyroid blend to help increase thermogenesis.

If you're looking for the strongest pre workouts.

Or if you're not sure and want something for performance / gains, go through our buying guide for pre workouts.

Compared to the common 5 gram servings that concentrated pre workouts have, the serving size of Bulk is about 4 but still costs about the same as it only requires one scoop to get full dosages.

In this review, we'll explain each ingredient and how it is beneficial for power, endurance and muscle gains.

And yes, even women can take this pre workout. 

And ladies, don't let the “testosterone blend” intimidate you.

The testosterone blend made out of minerals and natural ingredients that can be taken by both genders.

You'll find out in this review why the Transparent Labs Pre Workout is one of the best, future-proof formula's we've found to date.

If you want less beta alanine and more weight loss ingredients, check out Transparent Labs Lean pre workout.

PreSeries Bulk Ingredients

Transparent Labs lives up to their name as they've fully disclosed their fillers (as you can see in the picture above). 

With the scoops being almost as big as protein scoops, you'll see why you should start utilizing this bazooka of a pre workout to make some more gains. 

It's got everything from nitric oxide (6 grams of citrulline malate), testosterone support to BCAA's and betaine anhydrous for strength and muscle gains.

While this isn't going make you feel like you're on crack (like our strongest pre workouts), you'll definitely be making some gains, and getting some insane pumps, thanks to the profile. 

You can buy bulk ingredients if you're really after the “perfect pre workout” and customize it in any way that you choose it.

We got a guide if you'd like some help finding the perfect pre workout for yourself.

Testosterone Support

What's a pre workout without some testosterone support?

Just in time for bulking season if you ask us!

Most pre workouts have vitamin B complexes, C, and maybe some electrolytes.

But only a very few actually have testosterone supporting vitamins like what you see here.

Vitamin D3 (3,000IU)

Vitamin D is one of the most common vitamins that people are deficient with. (It's the sunlight vitamin that most of us miss out on)

It's important for bone health, maintaining the immune system, and most importantly, it helps increase testosterone levels. 

Vitamin D has been demonstrated to improve sleep quality, thus naturally increasing the production of GH. 

With vitamin D3 being the most bioavailble form of vitamin D, you'll want to have the D3 version when supplementing.

Zinc (30mg)

Zinc may as well maybe one of your favorite ingredients. If you exercise intensely, you're most likely to be low on this.

With high exertion (both in the gym, and in life; stress), your testosterone levels naturally decrease but research has found that supplementing with zinc prevents that, as it helps promote higher free testosterone levels and not to mention improved endurance and thyroid levels. 

Zinc is one of the essential minerals that is involved with maintaining many of the normal body functions. If you're serious about making gains or just being healthy, you'll want to have this in your supplement arsenal.

Mucuna Pruriens (70mg)

Both a testosterone booster and a dopamine enhancer, mucuna pruriens is known for it's stimulating effects on testosterone, and it indirectly increases GH production.

With it in PreSeries Bulk, you'll be more motivated as it also increases dopamine / pleasure.

But most importantly, it helps with testosterone production and decreases stress. 

The recommended dosage for Mucuna however, is 100mg 3 times a day, or at least a bit more than 70mg.

So while this seems low, remember that there's other testosterone increasing ingredients in here. It's one of those ingredients that's nice to have but it won't be missed if it wasn't included.

Boron (5mg)

Another essential mineral that you should be using. It's been shown to maintain and improve bone health. 

An interesting find on this mineral in studies, is that it tends to decrease SHBG (sex-hormone-binding globulin), a protein that binds to testosterone in the blood.

Decreasing SHBG means that you can have more testosterone free and help you make more gains. It's basically like an anti-estrogen which is perfect in any testosterone booster.

Citrulline Malate (6g)

The everlasting ingredient of the bunch. Citrulline Malate is awesome for endurance, pumps and delaying fatigue.

It's the super version of arginine as it's more bioavailable and much more effective.

Citrulline is the amazing ergogenic ingredient that can increase overall performance.

The increase in nitric oxide will lead to more endurance, increased overall performance and strength. Like beta-alanine, it buffers ammonia and lactic acid, leading to greater output in performance and making you last through an intense workout more efficiently.

It has the perfect dosage as it's recommended to have anywhere from 6-8 grams of citrulline malate pre workout. If you're looking for pure citrulline rather than the malate version, check out Pre-Kaged.

Beta Alanine (4g)

After learning what citrulline malate does (buffers lactic acid), including beta-alanine just further makes this pre workout nearly limitless for increasing performance and gains.

What beta-alanine does is that it binds to histidine and turns into carnosine, which is super effective for buffering lactic acid.

With 4 grams per serving, you'll undoubtedly experience a tingling sensation (some people naturally don't) but it's totally safe and temporary.

Rest assured though, you're getting the full clinical dosage. There are no pixie dust dosages here.

BCAA's (4g at 2:1:1)

Training without BCAA's is like leaving a pile of cash on the table hoping no one would steal it. 

BCAA's is the building block of muscle protein synthesis and it can make the biggest difference in the world. 

Not only can it speed up the fat loss process but it can help maintain and promote muscle synthesis.

It basically keeps you in a prime anabolic state.

Since it stimulates protein synthesis, it'll also increase recovery, decrease soreness and fight off catabolism so you keep growing and maintaining your gains. (See our BCAA buying guide if you're looking for BCAA supplements).

The fat burning pre workout, Lean, has less BCAA's to cut down on the total calories. 

Check out Lean if you need a thermogenesis focused pre workout

Betaine Anhydrous (BetaPure™) (2.5g)

This here is another “household” ingredient that is a powerhouse for more gains.

If you want to make the most out of your gym efforts, you'll be sure you won't skip out on betaine anhydrous.

Made popular in 2015, betaine has been shown to decrease muscle soreness, increase muscle, endurance and overall power.

It works perfectly with creatine, though there is no creatine present in this formula (there is if you go for the Stim-Free version).

The studied and proven dose is at 2.5g, so you're getting so much more with the 4g dosage that's included here.

Betaine Anhydrous chemical structure

Taurine (1.3g)

Mainly a muscle volumizer (and a mental focus enhancer), taurine works to pull in more water and nutrients to the muscle.

It's not so much of a nitric oxide ingredient as it is a water filler. It's like glycerol monosterate but it's a conditionally essential amino acid so your body does need it (it's present mainly in the heart, brain and skeletal muscle).

When taken alongside BCAA's, citrulline and the other soreness “fighters” here, it works much better in making you feel more recovered and fresh.

N-Acetyl L-Tyrosine (600mg)

Like citrulline is to arginine, N-Acetyl L-Tyrosine is much more bioavailable than tyrosine. It's used to enhance focus and promotes the production of dopamine to help you feeling good. 

It decreases stress and anxiety, making you feel good during your workouts (no not as good as Driven Sports Craze, but you can check out our strongest pre workouts if that's what you want)

Most pre workout cheap out and only include half the dosage present here, so you're definitely getting what you pay for.

Choline Bitartrate (500mg)

Known more of a nootropic than anything else, choline helps you feel more connected to your workouts, increasing more mental focus and concentration. 

While choline bitartrate is the cheaper version of choline, it is still quite effective at 500mg and you'll definitely benefit from it here.

L-Theanine (360mg)

Present in green tea, L-Theanine promotes a smooth-like focus when helps prolong the effects of caffeine and keeps you in a “zen-like” focus. 

With a 2:1 ratio, there's 360mg of l-theanine and 180mg of caffeine. 

It's another nootropic that'll get you more connected to your muscles, thus increasing that mind-to-muscle connection we are all after.

Basically you'll feel more in control of the energy that you get from caffeine. 

No anxiety, stress, or anything that gets you shaky and looking like a crack-head on pre workouts!

Caffeine Anhydrous (180mg)

The powerhouse of energy, caffeine simply helps you feel more awake, alert and “in the mood”. 

Some pre workouts have it dosed at 500mg, some have it at 100mg, some don't have it at all (stim-free)

The clinically studied and proven dosage is at 250mg to 300mg.

The 180mg dosage included here won't get you feeling like you want to jump off a building and fly to China, but it will be enough to get you feeling like a Jedi with a controllable force that is in the zone.

Pre workouts are meant to increase overall performance and have you making more gains.

So if you're looking for a pre workout to help you jump off walls and make you feel temporarily awesome without making the most out of your gym efforts, then you should either take a look at our strongest pre workouts or our buying guide.

You can use Stim Booster with Bulk to make it even better. 

Transparent PreSeries Bulk has the serving size of protein scoops!

L-Norvaline (60mg)

In case we need to remind you, we've got some clinically dosed N.O. boosters for muscle pumps so far and having l-norvaline here is just going beyond all of our expectations. 

Derived from the amino acid l-valine, it helps improve blood flow (indirectly increases cardiovascular abilities). 

It's a luxury to have when stacked with other nitric oxide boosters as it further enhances the benefits. 

It stops nitric oxide (Arginase) from breaking down which means more and longer pumps, better nutrient delivery and increased blood flow.

Synephrine (50mg)

Derived from bitter orange, synephrine is a fat burning stimulant that is both, Beta-2 and Beta-3, andrenergic receptor agonist. 

What that means is that it increases energy, performance and mental functions. 

So combined with the other ingredients in PreSeries Bulk (like L-Acetyl L-Tyrosine, Choline Bitratrate, and L-Theanine) you'll be feeling more in the zone, have a better mind-to-muscle connection and feel centered with your workout.

With synephrine, your body is more likely to use fat as a energy source

That's a double boo-ya if there was ever one!

Lean is a pre workout made for fat burning.

Hordenine (25mg)

Like Synephrine, it functions as a Beta-2 adrenegic agonist and it helps prevent the breakdown of noradrenaline.

When Hordenine is used with other stimulants, it helps prolong the energizing effects and have you feeling more energized for a longer period of time.

You'll basically feel more focused, alert and experience much more energy.

As with all of the ingredients present in this formula, you'll love how well everything goes and works together.

Stim Booster will help turn Bulk into a stronger pre workout...

BioPerine (5mg)

BioPerine is the black pepper extract of this formula.

You've probably seen in more and more pre workouts these days and it's there for good reason.

It's to improve the overall digestion and bioavailability of all the ingredients in this formula. It prevents the breakdown of the ingredients and helps maximize their benefits.

With the number of ingredients here and their benefits, BioPerine is here to make sure you make the most out of them.

Flavors Available

PreSeries Bulk comes in 3 6 different flavors and they've recently improved their flavors so it'll taste a bit better. 

And even when it tasted a little bad, everyone was and still is addicted to this stuff because it works so well.

Now they have 6 different flavors available (they come out with new flavors almost yearly).

Future-Proof Pre Workout

We used to think 5 gram scoopers were great, they contained 10 ingredients, all of them would be in a prop blend and at undisclosed dosages.

But not with PreSeries Bulk.

It redefines what pre workouts are suppose to do, and that's to increase performance and gains come at a faster pace.

You'll recover faster, feel less soreness, get more pumped, and feel more in the zone.

What more could we ask for?

If you're looking for something of a staple of a pre workout, you'l love PreSeries Bulk.

It's everything we could ask for. 

Transparent Labs is on to big things by creating something so sustainable that it doesn't need to be reformulated…ever. 

They do have a stim-free version which is great if you're looking to take a break from stimulants.

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