Bestseller

4.41/5.0 733 Reviews

BULK BLACK

Pre-Workout

Transparent Labs Bulk Black is the pinnacle of a clinically dosed pre-workout supplement for stim lovers. If you have experience with our regular Bulk Pre-Workout formula but want some extra "pep" in... View Ingredient Breakdown

No Artificial Sweeteners

No Artificial Coloring

Gluten-Free and Non-GMO

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BULK BLACK Pre-Workout

10% off

Customer Reviews

Based on 733 reviews
76%
(556)
7%
(51)
7%
(51)
3%
(24)
7%
(51)
B
B.F.
Bulk Black

I'm a world champion arm wrestler and I've used many preworkouts over the years. This is the best so far! Some tournaments are up to 7 hours and more if you consider after pulls. It helps me get zoned in and while other competitors gas out I've still got a full tank. Great energy, great pumps, great recovery.

J
Julian Miranda
Decent daily driver

For the price point it's probably one of the cleanest PRE work-outs next to Legion Pulse. Decent amount of solid ingredients for a good pump, just wish it had a lil bit more caffeine in it for a boost.

J
Jarred Bowers
Great Pre-Workout!

My top pre-workout thus far! I will continue to get this monthly!

j
john o'malley
Sou gummy isn't sour

The product works but the taste is similar to multi vitamins. Chalky and no sour taste to be had.

R
Ryan
Good stuff

Great boost in energy and focus. Never felt the tingle in my knees before. Could taste better but I’m not drinking pre workout for the flavor so it’s not going to effect my rating

Bestseller

Transparent Labs Bulk Black is the pinnacle of a clinically dosed pre-workout supplement for stim lovers. If you have experience with our regular Bulk Pre-Workout formula but want some extra "pep" in your step, this is the pre-workout for you. 

Each scoop of Bulk Black packs over 17 grams of proven nitric oxide boosters, hard-hitting nootropics, natural testosterone-supporting ingredients, and muscle fortifiers dosed according to scientific evidence, so you can bring the noise every time you walk into the gym. Like all Transparent Labs pre-workout formulas, Bulk Black contains absolutely no artificial sweeteners, flavors, food dyes, or added sugars.
 

Key Features 
 

  • Evidence-Based "Hardcore" Pre-Workout for Lean Muscle Gain: Like the regular Bulk Pre-Workout formula, Bulk Black features a comprehensive lineup of science-backed active ingredients to help dedicated athletes and gym-goers build muscle mass and perform at peak capacity.
     
  • Experience Intense Muscle Pumps with Proven Nitric Oxide Boosters: Bulk Black Pre-Workout contains clinical doses of L-citrulline, beta-alanine, and betaine anhydrous to enhance blood flow and give you those oh-so-satisfying, intense muscle pumps during training.
     
  • Stimulates Mental Sharpness, Focus, Drive, and Energy: Get into the "zone" every time you hit the gym with nootropics backed by scientific evidence, like alpha-GPC (AlphaSize®), caffeine (PurCaf®), L-tyrosine, and taurine. Bulk black pre-workout contains just the right amount of hard-hitting nootropics to deliver a psychotropic rush without the dreaded post-workout crash.
     
  • Epic All-Natural Flavors Sweetened with Stevia: Many other pre-workout formulas are laden with artificial sweeteners, food dyes, and unnecessary fillers. We know you care about what you put in your body, so Bulk Black Pre-Workout contains absolutely no artificial sweeteners, added sugars, or food dyes, and the formula is naturally sweetened with stevia. Choose from multiple refreshing flavor options, including Black Cherry, Cherry kiwi, Peach Mango, Blue Raspberry, Watermelon Peach, Blueberry Pomegranate, Strawberry Mango and Sour Gummy.
     
  • Third-Party Tested and Certified for Quality: As part of our commitment to industry-leading transparency and quality, every batch of this product is tested by a third-party lab for purity and potency. You can find all of our test results in the footer of our website. This product is also certified by Informed Choice to meet the highest standards for athletes and consumers.

No Artificial Sweeteners

No Artificial Coloring

Gluten-Free and Non-GMO

Customer Reviews

Based on 733 reviews
76%
(556)
7%
(51)
7%
(51)
3%
(24)
7%
(51)
B
B.F.
Bulk Black

I'm a world champion arm wrestler and I've used many preworkouts over the years. This is the best so far! Some tournaments are up to 7 hours and more if you consider after pulls. It helps me get zoned in and while other competitors gas out I've still got a full tank. Great energy, great pumps, great recovery.

J
Julian Miranda
Decent daily driver

For the price point it's probably one of the cleanest PRE work-outs next to Legion Pulse. Decent amount of solid ingredients for a good pump, just wish it had a lil bit more caffeine in it for a boost.

J
Jarred Bowers
Great Pre-Workout!

My top pre-workout thus far! I will continue to get this monthly!

j
john o'malley
Sou gummy isn't sour

The product works but the taste is similar to multi vitamins. Chalky and no sour taste to be had.

R
Ryan
Good stuff

Great boost in energy and focus. Never felt the tingle in my knees before. Could taste better but I’m not drinking pre workout for the flavor so it’s not going to effect my rating

Clinically Dosed, All Natural.

Science-Backed Formulas, Clinically Effective Dosages.

No Artificial Sweeteners, Fillers, or Dyes.

3rd-Party Lab Tested.

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