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.
Why Use Bulk Black
Pre-Workout
Transparent Labs Bulk Black Pre-Workout provides clinically effective doses of evidence-based ingredients to help you crush every training session.
Improve Strength and Build Muscle
Bulk Black Pre-Workout is formulated for dedicated gym-goers and athletes training to build muscle and strength.
Ignite Focus and Energy
Get dialed in for every workout with ample doses of key nootropics like AlphaSize® alpha-GPC, PurCaf®, Infinergy™, L-tyrosine, and L-theanine.
Maximize Blood Flow
The nitric oxide boosters in BULK BLACK Pre-Workout rapidly increase blood flow to skeletal muscles so you can achieve full muscle pumps every time you train.
Volumize Muscle Cells
Bulk Black Pre-Workout provides essential electrolytes and vitamins along with osmolytes to ensure muscle cells stay hydrated throughout your workout.
Key Ingredients
Our formulas are made with clean, natural ingredients, with clinically-validated dosages to support health and performance.
L-Citrulline Malate (2:1)
8,000 mg
L-citrulline is a well-known nitric oxide booster that enhances blood flow, reduces muscle fatigue, and boosts endurance.
Beta-Alanine
4,000 mg
Beta-alanine is an amino acid that enhances muscular endurance, delays fatigue, and improves performance by increasing muscle carnosine levels.
BetaPure”™ Betaine Anhydrous
2,500 mg
Betaine Anhydrous keeps muscle cells hydrated, supports energy production, and boosts muscle endurance, strength, and overall performance.
Taurine
1,300 mg
Taurine is an amino acid, essential to nervous system function and helps prevent fatigue during intense exercise.
