SUPPLEMENT SMARTER TO TRAIN HARDER.
Enhance your performance in the gym with Transparent Labs BULK Pre-Workout. Each scoop comes fully loaded with clean, evidence-based ingredients in clinically effective doses and absolutely no fillers or artificial additives.
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Pre-Workout Ingredients that Actually Work

CITRULLINE MALLATE
The silver bullet of pre-training science, it’s 2x more energy-producing than L-arginine. Count on improved strength, aerobic performance, and muscle endurance.

BETA-ALANINE
Unlike others, we don’t skimp here. Get the fully-recommended dose needed to increase cellular carnosine levels.



BETAPURE BETAINE ANHYDROUS
This cutting-edge new supplement is clinically proven to trigger dramatic muscle growth. All while reducing fatigue and replenishing strength between sets.

INFINERGY™ SUSTAINED-RELEASE CAFFEINE
Infinergy™ is not your standard caffeine. Instead, it harnesses an ionic bond between caffeine and malic acid to create a molecule–di-caffeine malate. The result is unmatched synergy for lasting mental and physical performance without jitters or crashing.
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PreSeries BULK Pre-Workout
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Muscle Building Essentials Stack
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PreSeries BULK Pre-Workout
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THE REAL SCOOP
BULK vs. the others
Don’t Just Take Our Word For It
Read what health-conscious customers and avid gym-goers are saying about BULK Pre-Workout:
“Y’all have some great quality supplements. I’ve enjoyed using these products for years now. No jittery feeling, no crash after, and it is easy on my stomach...”
Nate D.“Definitely feel the difference - helps me boost my energy and maintain focus throughout my workout. Highly recommend Bulk.”
Ted A.“TL is the only pre-workout I use because it gets the job done and yields an intense pump, sustained energy, and no burn out after my workout.”
Caleb L.