Stimulant Free Pre-Workout

Do you remember your first time? The intensity? The euphoria? We remember our first time taking pre-workout, too. And recapturing that UNSTOPPABLE feeling is what MOTHERBUCKER™ is all about! Beta-Alanine: You know that tingle. 6.4 grams is just the right amount to prime your pump.* Nitrosigine®: Clinically shown to increase circulation to your brain, promoting cognitive function.* Caffeine: 300mg Caffeine Anhydrous + 100mg Extended Release Caffeine = 400mg of pure energy.* L-Tyrosine: Increases dopamine production, so your always stoked in the gym.* Alpha GPC: Promotes the mind-to-muscle connection, helping you get (and stay) in sync.* Senactiv®: Can help you increase VO2 Max and boost athletic performance.* Huperzine A: This incredibly beneficial nootropic can help improve memory recall & stimulate laser-like focus.* Rauwolscine: Derived straight from Devil's Peppers, this powerful vasodilator will help give you the gnarly pump you dream of.*

• Supports energy, pump, and focus
• Clinically dosed ingredients for maximum performance
• Formulated with all-natural sweeteners and zero fillers
• Blue Ice flavor

Pro Series Pre-Workout targets performance at every angle. This advanced formula fuels sustained, crash-free energy, next-level focus, massive pumps, and elite strength with clinical doses of PeakATP™, Nitrosigine™, alpha-GPC, and a fast-acting Caffeine + Dynamine™ + TeaCrine™ energy complex.

Frequently Asked Questions

What is PeakATP?

PeakATP is a clinically validated and highly absorbable form of adenosine triphosphate (ATP). It delivers functional energy and helps combat fatigue.

What is Nitrosigine?

Nitrosigine is a patented complex of bonded Arginine Silicate, and the most powerful nitric oxide enhancer per gram. Nitric oxide plays a key role in exercise endurance because it’s a vasodilator, supporting the dilation of blood vessels for increased blood flow.

What is alpha-GPC?

Alpha-glycerylphosphoryl choline (alpha-GPC) is a naturally occurring compound found in the brain and is known to support cognitive health.

What is Dynamine?

Dynamine is an alkaloid that complements caffeine to support increased energy.

What is TeaCrine?

TeaCrine is a patented compound that supports increased energy, mood, and focus when combined with caffeine.

• Supports power, strength, and energy
• Formulated by 5x Mr. Olympia Chris Bumstead
• Tastes Like Winning flavor

Channel your inner Thavage with Christopher’s Secret Stuff. Built to support power, strength, and energy, this formula features trusted ingredients like l-citrulline, betaine, l-tyrosine, Alpha GPC, and Huperzine A to support improved cellular hydration, enhanced focus, and optimized blood flow.

What’s the secret? We’ll never tell... But this cryptic twist on CBUM’s Thavage Pre-Workout is sure to send a rush of electrifying sweetness to your tastebuds.

Frequently Asked Questions

What is l-citrulline?

L-citrulline is an amino acid involved in nitric oxide production, which increases blood flow to working muscles.

What is betaine? 

Betaine is a naturally occurring amino acid-like compound that supports exercise performance, endurance, and cellular hydration. 

What is l-tyrosine?

L-tyrosine is a non-essential amino acid and precursor to epinephrine and dopamine. Epinephrine and dopamine contribute to alertness, energy, and mental focus.

What is Alpha GPC?

Alpha-glycerylphosphoryl choline (Alpha GPC) is a naturally occurring compound found in the brain and is known to support cognitive health.

What is Huperzine A? 

Huperzine A is a derivative of Chinese club moss. It’s believed to support memory and cognitive function. 

• Caffeine-free pre-workout
• Supports strength, stamina, pump, focus, and drive
• Informed Choice certified
• Non-GMO, gluten free, and contains zero artificial colors, sweeteners, or flavors
• Peach Mango flavor

STIM-FREE Pre-Workout from Transparent Labs is a caffeine-free formula designed to promote enhanced strength, stamina, pump, and focus—without jitters or sleep disruptions.

Each scoop delivers science-backed ingredients at clinically validated doses, including 8g of l-citrulline malate, 4g of beta-alanine, and 2.5g of betaine anhydrous.

Frequently Asked Questions

What is citrulline malate?

Citrulline malate is a precursor to nitric oxide, which increases blood flow to working muscles and promotes greater muscle pumps and heightened energy levels.

What is beta-alanine?

Beta-alanine is the modified version of the amino acid alanine. The body converts beta-alanine into carnosine, which supports exercise performance and endurance. 

What is betaine?

Betaine is a naturally occurring amino acid-like compound that supports exercise performance and endurance.