Mother Bucker Pre-Workout

What Is Mother Bucker?

You remember your first time on pre-workout. The rush. The tunnel vision. The feeling that you could outlift every personal record you ever set. Most pre-workouts stopped delivering that feeling a long time ago. Mother Bucker brings it back.

Built for elite stim-junkies, advanced athletes, and seasoned lifters with sky-high tolerances, Mother Bucker is one of Bucked Up's most intense pre-workout formulas. Every ingredient is fully disclosed, every dose is purposeful, and the formula is stacked from top to bottom.

Start with 400mg of total caffeine: 300mg of Caffeine Anhydrous for an immediate surge of energy, followed by 100mg of Microencapsulated Delay Release Caffeine to keep you pushing through the final sets.* Then there's 6.4g of Beta-Alanine, which at that dose has been shown to support stamina and VO2 Max for enhanced athletic performance.* Nitrosigine delivers rapid increases in blood flow to support serious muscle pumps,* while 4g of L-Citrulline stacks on top to amplify nitric oxide production.* HydroPrime glycerol and Himalayan Pink Salt round out the pump matrix to support hydration during hard training.* Alpha-GPC has been shown to support mental focus and the mind-muscle connection.* Huperzine A works by inhibiting the breakdown of acetylcholine, supporting sharper cognitive performance during intense training.* L-Tyrosine acts as a precursor to dopamine, supporting mood and motivation when the session gets heavy.* AstraGin supports absorption of key ingredients like citrulline to help you get more out of every scoop.*

WARNING: This formula is NOT newbie-friendly. Start with a half scoop to assess your tolerance.

Key Ingredients

·         Caffeine Anhydrous 300mg A concentrated, fast-absorbing form of caffeine that may support alertness, mental focus, and training performance.* This immediate-release portion kicks in quickly and forms the foundation of the formula's stimulant profile, paired with delayed-release caffeine for extended duration.*

·         Microencapsulated Delay Release Caffeine 100mg A form of caffeine coated in a food-grade protective shell that slows absorption, delivering a gradual, sustained energy release over time rather than a sharp spike.* Research published in the Journal of Dietary Supplements confirms improved alertness duration and reduced crash compared to immediate-release caffeine alone.* Combined with caffeine anhydrous, total caffeine per serving is 400mg.

·         Beta-Alanine 6,400mg A non-essential amino acid that may increase muscle carnosine levels, which acts as a buffer against hydrogen ion buildup during intense exercise, potentially supporting endurance and stamina.* Dosed at 6.4g, the highest amount used in published clinical research; expect a pronounced tingling sensation (paresthesia), which is a harmless and well-documented effect.

·         Nitrosigine® (Inositol-Stabilized Arginine Silicate) 1,500mg A patented complex of arginine, inositol, and silicon shown in multiple double-blind, placebo-controlled human trials to significantly increase nitric oxide levels, enhance blood flow, and support cognitive performance.* Dosed at the exact 1,500mg clinical research dose, with evidence showing improved flow-mediated dilation and mental flexibility without raising heart rate or blood pressure.*

·         L-Citrulline 4,000mg A non-essential amino acid that may support nitric oxide production and blood flow, potentially enhancing muscle pumps and endurance during training.* Stacked alongside Nitrosigine® for a complementary dual-pathway pump effect; note this is pure L-citrulline, not citrulline malate, so no malic acid is included at this dose.*

·         HydroPrime® Glycerol (65% Yield) 500mg A patented, high-concentration form of glycerol that acts as an osmolyte, drawing water into muscle cells to support intramuscular hydration and potentially enhancing pumps, plasma volume, and endurance.* Note: research-effective doses for glycerol's hydration and endurance benefits are typically 2–5g; at 500mg, this is a lower complementary dose within the broader pump stack.

·         L-Tyrosine 1,500mg An amino acid that serves as a precursor to dopamine and norepinephrine, neurotransmitters involved in focus, motivation, and stress response, and may help support mental performance under physically demanding conditions.* Dosed at 1,500mg, near the upper end of the commonly studied 500–2,000mg range.

·         Theobromine 100mg A naturally occurring methylxanthine alkaloid found in cacao that acts as a gentler, longer-lasting complement to caffeine, working as a mild vasodilator and adenosine receptor antagonist that may support sustained energy, mood, blood flow, and focus without the sharp spikes associated with caffeine alone.* Human studies are more limited than those on caffeine; existing research suggests 100mg is within a well-tolerated range.*

·         Senactiv® 50mg A plant-based ingredient derived from Panax notoginseng and Rosa roxburghii studied in human clinical trials for its potential to support athletic endurance performance and muscle cell renewal.* At 50mg, Mother Bucker matches the clinical research dose, an improvement over the 25mg found in several other Bucked Up formulas.*

·         Alpha-GPC (90% Yield / 300mg Active) 333mg (yielding 300mg Alpha-GPC) A highly bioavailable choline compound that may support acetylcholine production in the brain, potentially promoting mental focus and mind-muscle connection during training.* At 300mg of active Alpha-GPC, this is the most rigorously studied dose for cognitive performance in physically active individuals.*

·         AstraGin® 50mg A patented botanical blend of Astragalus membranaceus and Panax notoginseng studied for its potential to enhance absorption of amino acids and key nutrients, helping maximize the effectiveness of other formula ingredients.*

·         Himalayan Rock Salt (with Trace Minerals) 300mg A natural source of sodium and trace minerals that may help support electrolyte balance and hydration during physical activity,* and may also contribute to the pump effect by supporting vascular function alongside the nitric oxide ingredients.

·         Huperzine A (Huperzia serrata) 200mcg An alkaloid derived from Chinese club moss that may help inhibit the breakdown of acetylcholine, potentially supporting memory and cognitive performance during training.* Evidence in otherwise healthy individuals is still emerging; more robust research exists for populations with cognitive decline.

·         Rauwolscine (Alpha-Yohimbine) 2mg A plant-derived alkaloid related to yohimbine that acts as an alpha-2 adrenergic receptor antagonist, studied for potential fat mobilization and stimulant effects.* Important safety note: human clinical evidence for rauwolscine is very limited, and most research is preclinical (animal and receptor studies). When combined with the 400mg of caffeine already in this formula, Rauwolscine may amplify stimulant effects on heart rate and blood pressure. Individuals sensitive to stimulants should exercise particular caution.*

·         Key Benefits

·         400mg Total Caffeine Per Serving 300mg Caffeine Anhydrous for immediate energy* plus 100mg Microencapsulated Delay Release Caffeine to help sustain energy levels throughout your workout.*

·         6,400mg Beta-Alanine To support stamina, endurance, and VO2 Max performance.*

·         1,500mg Nitrosigine (Inositol-Stabilized Arginine Silicate) To support nitric oxide production and blood flow within 30 minutes of consumption.*

·         4,000mg L-Citrulline To support nitric oxide production and muscle pumps, stacked on top of Nitrosigine for a more advanced pump formula.*

·         500mg HydroPrime Glycerol (High-Concentration Form) To support muscle fullness and hydration without clumping.*

·         1,500mg L-Tyrosine As a precursor to dopamine and norepinephrine to support focus and mood during intense training.*

·         300mg Alpha-GPC (90% Yield, Delivering 300mg Active) To support mental focus and the mind-muscle connection.*

·         200mcg Huperzine A To help support memory recall and sustained, tunnel-like focus during training.*

·         100mg Theobromine To complement caffeine for smooth, sustained energy.*

·         50mg Senactiv To help support exercise performance and recovery between hard sessions.*

·         50mg AstraGin To support enhanced absorption of citrulline and other key ingredients.*

·         2mg Rauwolscine To support fat mobilization when combined with exercise.*

·         300mg Himalayan Pink Salt To support hydration and help enhance muscle pump.*

·         Fully Transparent Label With exact ingredient dosages, no proprietary blends.

·         Designed for Elite Stim-Junkies, Advanced Athletes, and Seasoned Fitness Enthusiasts Only

·         20 Servings Per Tub

·         Available Flavors Gym Junkie Juice, Miami, Musclehead Mango, Rocket Pop, Strawberry Super Sets, Franken Juice, and additional rotating flavors.