Pre Build Pre-Workout , 30 Servings Gummy Worm

Size: 30 Servings
Flavor: Gummy Worm
Sale price$48.08


Packaging may vary.



MuscleTech Lab Series PRE-BUILD





MuscleTech® Lab Series Pre-Build is our most complete pre-workout. Unlike the other guys, it features only the highest quality key ingredients in research-inspired doses, and fully discloses them on the label, so you know exactly what you’re getting. Prepare for more energy, the best pumps, enhanced focus plus more raw strength, power and muscle.*


Lab Series Pre-Build was engineered to deliver the ideal combination of clinically dosed key ingredients for unparalleled energy, extreme muscle pumps and performance, and a powerful sensory experience!*

The unique combination of choline bitartrate and TeaCrine® provides a powerful sensory experience, while a research-inspired dose of a precise caffeine molecule delivers enhanced energy and focus.*

There’s also a research-inspired dose of L-citrulline for better pumps plus a grape and apple extract blend.*

In the past, arginine was a staple in most pre-workout products due to its ability to increase Nitric Oxide (NO). Then, a few years ago, research emerged that showed L-citrulline was extremely effective at increasing blood arginine levels. Citrulline is a precursor of arginine and it provides a readily available material for arginine production, which in turn can be used for the production of NO. In fact, compared to a larger dose of arginine, L-citrulline has been scientifically shown to reach superior peak plasma arginine levels, making it a far better choice for NO production in your pre-workout! This is due to arginine itself, when consumed as a supplement, excessively breaking down in the body. Citrulline, on the other hand, is less susceptible to these destructive metabolic pathways, making it far more effective and efficient.*










While other pre-workout formulas may have some of the same ingredients, Lab Series Pre-Build features superior and full clinical doses of beta-alanine, betaine and taurine.*

In a 2009 study, active college males taking 2.5g of betaine per day (found in 2 scoops of Pre-Build) for two weeks improved muscle endurance (squats) and increased the quality of repetitions performed. Researchers concluded that two weeks of betaine supplementation can significantly improve muscle endurance in the lower body (via more squat reps), as well as improve the quality of the workout by improving the number of repetitions performed at 90% of the subject’s maximal peak power output.[ii]*

In a 2013 study, conducted at the College of Springfield in Massachusetts and published in the Journal of the International Society of Sports Nutrition, researchers found that subjects who supplemented with 2.5g of betaine along with weight training gained 3.75 lbs. of muscle in 6 weeks! What’s key about this study is, subjects were strength-trained men between the ages of 18 and 35. These men were required to have 2 years of strength training at least 3 times per week. Plus, they needed to meet minimum strength requirements of being able to at least bench-press their bodyweight and squat at least 1.25 times their bodyweight. This is key as it shows betaine can help even the most experienced lifters — which makes betaine a must-have ingredient in any supplement arsenal![i]*

i Cholewa et al., 2013. Journal of the International Society of Sports Nutrition. 10:39.
ii Hoffman et al., 2009. Journal of the International Society of Sports Nutrition. 6:7.

MuscleTech Lab Series PRE-BUILD

Beta-alanine is one of the key supplement breakthroughs of the last 10 years and Lab Series Pre-Build utilizes a full researched 3.2g dose in each 2-scoop serving. When consumed, it passes directly from the bloodstream into muscle, where it binds to the essential amino acid L-histidine to form carnosine – a dipeptide that is your muscles’ first line of defense against the lowering of pH within your muscle cells during exercise. The lowering of pH is a major factor in muscle fatigue – negatively affecting enzyme function and muscle contraction events. As your muscles’ pH drops, so does their ability to contract forcibly and maintain a high level of performance throughout a workout.*

Research backs the effectiveness of this powerful ingredient and the studies are numerous. Research shows that beta-alanine is capable of decreasing fatigue rate and improving performance during training – enhancing the muscle and strength-building process!*

The 1g dose of taurine found in a full serving of Lab Series Pre-Build is clinically shown to improve performance in endurance athletes. This free-form amino acid is one of the most abundant amino acids in muscle and also aids in cell volumization.

Balshaw et al., 2013. Amino Acids. 44(2):555–61.



  • Only the highest quality ingredients
  • Guaranteed pure protein
  • Fully disclosed formulas
  • Clinically dosed, lab-tested key ingredients

MuscleTech® researchers have taken an unparalleled leap in their commitment to supplement science by partnering with the Faculty of Kinesiology of the University of Toronto – an institutional leader with a long history of innovation and research – to support the MuscleTech Metabolism and Sports Science Lab.

As part of the $58-million, state-of-the-art Goldring Centre for High Performance Sport of the University of Toronto, the partnership with the new lab reaffirms our devotion to developing ingredients with extreme efficacy validated by unbiased scientific research. The prestigious University of Toronto was recently ranked in the Top 20 for overall performance as stated in the Times Higher Education World University Rankings 2013–2014 report. The MuscleTech Metabolism and Sports Science Lab features novel technologies and equipment to carry out gold-standard research on new, emerging ingredients.

As the first partnership of its kind, it is at the forefront of muscle physiology, sports performance and nutritional biochemistry. MuscleTech researchers’ passion and vision to continuously research, develop and patent the most effective sports supplements in the world has led to the MuscleTech Lab Series – a complete line of advanced products that promises extreme efficacy, with key ingredients validated by scientific research. MuscleTech Lab Series products are based on research from universities and third-party labs all around the world, including, what will be emerging research from the Metabolism and Sports Science Lab. MuscleTech Lab Series is the brand you can trust for superior science and superior results.


Each bottle of MuscleTech® Lab Series Pre-Build is fully disclosed with no proprietary blends, or hidden or underdosed key ingredients.


To ensure a high standard of quality and purity, each batch of MuscleTech® Lab Series Pre-Build undergoes strict quality control and is third-party tested and verified to ensure that each bottle of meets the highest standards of purity, quality and consistency.


As an athlete, we understand that one of your key concerns is knowing exactly what you put in your body. That’s why Team MuscleTech® is committed to providing the highest quality scientifically formulated products that are free of banned substances. And that’s why each batch of MuscleTech Lab Series Pre-Build is guaranteed to be banned substance free so you can rest assured you’re taking only the best to be the best.


MuscleTech® researchers worked closely with industry-leading flavoring experts to guarantee that each high-quality serving of MuscleTech Lab Series Pre-Build delivers a mouthwatering flavor experience that will have you craving every serving!

Serving Size 1 Scoop (9g)
Servings Per Container Approx.30
Amount Per 1 scoop %DV
Calories 20       
Total Carbohydrate 1 g <1%%
Sugars 0 g
Sodium 65 mg 3%
Performance & Endurance Compound
Carnosyn® Beta-Alanine 1.6 g
Taurine 500 mg
Pump Matrix
L-Citrulline 1.5 g
ViNitrox™ Grape Extract (as Vitis vinifera) (marc) and Apple Extract (as Malus pumila) (skin) 250 mg
Standardized for 95% Polyphenols       
Musclebuilding Matrix
Betaine Anhydrous 1.25 g
Neurosensory Blend
Galangal extract (as Alpinia officinarum) (root) 150 mg
Choline Bitartrate 100 mg
Sensoril® Ashwagandha Extract (as Withania somnifera) (root and leaf) 62.5 mg
Yohimbe Extract 20 mg
as Pausinystalia yohimbe) (bark)       
Standardized for 6% yohimbine       
Energy + Matrix
Caffeine Anhydrous 175 mg
TeaCrine® (supplying 40% theacrine) 62.5 mg
† Daily Value not established.
Other Ingredients:
Malic Acid, Silicon Dioxide, Natural and Artificial Flavors, Resistant Maltodextrin, Sucralose, Tartaric Acid, Salt, Acesulfame-Potassium, Gum Blend (Cellulose Gum, Xanthan Gum, Carrageenan), FD&C Red No. 40.
Processed in a facility that also processes milk, egg, wheat, soy, peanut, tree nut, fish and shellfish ingredients.

Directions For Pre Build Pre-Workout: Please read the entire directions before consuming and follow the tolerance assessment protocol. Assess your tolerance first by mixing 1 serving (1 scoop) with 8 oz. of cold water and consuming it about 30 minutes before your daily workout. Once tolerance has been assesed, increase the dosage to 2 scoops mixed with 16 oz. of water before working out. Do not exceed 2 scoops in a 24-hour period. Drink a glass of water daily for general good health.

Warnings: Not intended for use by persons under 18. Do not use if pregnant or nursing. One serving of this product contains up to as much caffeine as two cups of coffee. Caffeine-sensitive individuals may experience symptoms including (but not limited to) restlessness, nervousness, tremors, anxiety, increased heart rate and difficulty sleeping. Do not combine with other sources of caffeine or stimulants. Some individuals may experience a harmless tingling sensation from the concentrated performance dose of beta-alanine. Consult a medical doctor if you have a medical condition or before starting any diet or exercise program. KEEP OUT OF REACH OF CHILDREN.

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