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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, and Sour Gummy.


Third-Party Verified for Purity and Potency: In accordance with our commitment to transparency and quality assurance, each batch of Bulk Black Pre-Workout undergoes third-party testing to ensure what's on the label is what's in the product—nothing more, nothing less.

Transparent labs Bulk Black Series

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