Transparent Labs PreSeries Bulk Review

Transparent Labs Bulk Pre Workout Review

We’ve been searching for the ultimate bulking pre workout for what feels like ages, and finally its here. It goes by the name BULK by transparent labs, a specially designed mass-building pre workout originating from their PreSeries supplement line.

At least, that was our story 2 years ago. Since then, we’ve been enjoying the benefits of BULK on and off ever since.

Compared to every other pre workout on the market, BULK wins hands down for building muscle and greatly improving performance. Below, you’ll see our first review from the first time we tried this pre workout, as well as a few updates for 2018.

Spoilers for this review:

  • Bulk is 4X Your Normal Pre Workout
  • Specifically Designed For Muscle Gain
  • Limitless Energy Complex
  • Testosterone Support
  • Full 30 Day Supply
  • Available on

Review of TL Bulk

Personal experience taking PreSeries BULK pre workout

I have been taking BULK for the last 4 weeks and I can honestly say that it is the hands down best pump activating supplement I have ever taken. Probably because of the massive amount of citrulline malate. Citrulline’s clinically effective dosage ranges from 4-8g/per serving, but most pre-workouts only contain 1-2g… effectively making it worthless unless you are a 65 pound 9 year old girl.

Infact, if you look at most top selling pre-workouts on the market (Optimum Nutrition, Muscle Pharm, C4), they contain less than 10g total per scoop.

PreSeries BULK Pre-Workout contains 22.64 g per scoop. The scoops are near protein size!

Not only that, but each tub of Transparent Lab’s pre-workout products contains a full 30 servings (where most companies who offer 20+g scoops only offer 20 servings per tub).

PreSeries Advanced Energy Blend

180 mg of Caffeine paired with 360 mg of L-theanine (the preferred 1:2 ratio) offers a solid, jitter free energy and focus boost strong enough to push you through your most grueling workouts. Not only that, but BULK Pre-Workout also contains 25 mg of Hordenine which provides additional energy and endurance.

I am impressed at the amount of energy boost I felt – considering my caffeine tolerance and the relatively low amount within BULK.

Pretty much, I was in absolute BEAST MODE which is something you will never understand taking weak-sauce C4, Assault, and the rest of the average-pack.

PS they also offer a Stim-Free Pre-Workout in their PreSeries line. I haven’t tried it yet, but I plan to use it as I cycle off caffeine for a month. I try and go caffeine free for 1 month every 3 months.

Transparent labs

Massive Pump with this pre workout

As discussed above, PreSeries BULK offers insane pump. It makes me feel like my muscles are growing on the spot, as I work out. This is due to 6 g of Ctirulline and 60 mg of L-Norvaline. Nothing fancy, just clinically proven ingredients at the appropriate dosages.

PS, if you don’t know about Citrulline, it converts to L-Arginine within the body and has been found to be MORE affective than L-Arginine direct supplementation. For more on Citrulline, check out

Good source of High Quality BCAAs

A massive 4g’s of BCAA in a 2:1:1 ratio (meaning 2g leucine, 1g isoleucine, 1g valine). The addition of BCAA’s to the product offers increased strength, endurance and muscle recovery during your workout.

What is really cool though, is that these are fermented plant-based BCAAs. Meaning they are 4X higher quality and significantly more expensive than the animal byproduct based BCAAs many other brands use.

Testosterone Support In a Bulking Pre Workout

It’s important to understand that the product’s testosterone support element is just that… support. It is not designed as a testosterone booster, rather, it contains ingredients that will support your body’s natural testosterone production. Which is important going into a high intensity workout.

Ingredients for testosterone support include Vitamin D3, Boron, and Zinc.

Taste/Flavor – Improved for 2017

Bulk and the other Transparent Labs pre workouts used to not taste so great back in the day (2015). But now, for 2017 their flavor profiles are on point! Better yet, they are sweetened all-natural with stevia, something very few supplement brands choose to do since its apparently expensive!

We recommend BULK in Blue Razz and Strawberry Lemonade, but if you like sour, then Green Apple all the way!

Conclusion on Bulk pre workout

Conclusion on this PreSeries BULK Review

Overall, I would say Transparent Labs PreSeries BULK Pre-Workout is by far the best pre-workout on the market. If you know supplements and you know ingredients, there’s no denying it. Hopefully, they can rework their flavoring a bit in the future.

The owners of Transparent Labs has offered SupplementHQ readers a 10% off coupon (which stacks with their monthly subscription 10% off discount). Use coupon code “shq” at checkout. Check it out here.

Try it and leave your review in the comments below! Join our mailing list for free monthly supplement giveaways.

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  1. Derek Miller says

    This is the second time today that i’ve read about this stuff! The stimulant-free version looks pretty awesome. It’s nice to see a supplement company that recognizes the fact that one pwo doesn’t fit everybody’s needs… I happen to be intolerant to caffeine (gives me awful headaches).

    I’m definitely going to give this stuff a shot!

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