Product Overview

PreSeries BULK was developed to be the best "bulking" pre-workout supplement available. The key ingredients, all backed by published scientific research, are included at clinically effective dosages. Importantly, this pre-workout formula contains absolutely no colored dyes, artificial sweeteners or flavors, or harmful additives.

With complete label transparency and evidence-based doses of ergogenic nutrients like L-citrulline, betaine anhydrous, beta-alanine, and AlphaSize®, PreSeries BULK is the go-to pre-workout for dedicated gym-goers, athletes, and bodybuilders alike

Each serving exceeds 21 grams and includes 19 active ingredients that help increase nitric oxide (the "pump") and focus, reduce fatigue, and decrease muscle soreness, all while enhancing overall physical performance.

NOTE: PreSeries BULK contains fermented vegan BCAAs and is a vegan-friendly product.

Ingredient Profile

Serving Size: 1 Scoop (22.08g)
Servings Per Container: 30

Citrulline Malate 2:1 6,000 mg

Beta-Alanine 4,000 mg

BCAA 2:1:1 (Instantized)(Fermented) 4,000 mg

BetaPure™ Betaine Anhydrous 2,500 mg

Taurine 1,300 mg

L-Tyrosine 1000 mg

AlphaSize® Alpha-GPC300 mg

L-Theanine360 mg

Caffeine Anhydrous180 mg

Theobromine50 mg

Infinergy™ (Dicaffeine Malate)30 mg

Astragin™ 25 mg

PreSeries BULK FAQ's

Q: When will my order be shipped out?

A: All orders ship out the following business day.

Q: How should PreSeries BULK be taken to maximize its effectiveness?

A: In terms of timing, we recommend taking PreSeries BULK 20-30 minutes prior to your workout. In terms of how much water to drink with PreSeries BULK, we recommend mixing 8-12 fl. oz of water with 1/2 scoop (to assess tolerance) and mixing 16-24 fl. oz of water with 1 full scoop.

Q: How does PreSeries BULK compare to other pre-workouts?

A: Back in 2014 we set out to make the best pre-workout supplement, regardless of price, without the artificial nasty ingredients so common in packaged goods. We wanted something WE would be comfortable taking daily, and confident that it would get the job done. If you want to see how we compare PreSeries BULK to other well rated pre-workouts, check out our best pre-workout blog post here.

Q: I am subjected to drug testing for my sport, can I take PreSeries Pre-Workout?

A: Yes, absolutely. Transparent Labs contains zero illegal drugs of any kind. Depending on how rigorous your drug-testing procedures, we recommend showing your coach or administration our supplement facts panel.

Q: Why doesn't PreSeries BULK contain creatine?

A: Large doses of caffeine negates the ergogenic effects of creatine. PreSeries BULK contains 180 mg of caffeine anhydrous.

Q: What is the difference between PreSeries BULK, PreSeries LEAN, and PreSeries STIM-FREE?

A: PreSeries BULK is designed to support lean muscle growth and includes a testosterone support complex, while PreSeries LEAN is designed to support fat loss and includes a thyroid support complex. PreSeries STIM-FREE, as the name suggests, contains zero stimulants and has added elevATP.

Q: I don't live in the United States, can I still buy PreSeries BULK?

A: Yes - our fulfillment center allows us to ship worldwide. Standard shipping for international orders typically takes 10-14 business days to arrive.

Q: Does Transparent Labs ship to my Country?

A: Transparent Labs ships Worldwide, except to the following countries, unfortunately, due to increasingly high fraudulent activity; Albania, Algeria, India, Lithuania, Macedonia, Romania, Russia, Tunisia, & Ukraine.

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BULK Pre-Workout - Previous Formulation

LEAN Pre-Workout - Previous Formulation