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Supplement Facts
Serving Size: 1 Scoop (9 g)
Servings Per Container: Approx. 36
1 Scoop %DV 2 Scoops %Daily Value
Calories 20 40
Total Carbohydrate 1 g <1% 2 g 1%*
Sodium 120 mg 5% 240 mg 10%
Potassium (as Potassium Chloride) 25 mg 1% 50 mg 1%
BCAA 4:1:1 Matrix
Instantized L-Leucine 2 g 4 g
Instantized L-Isoleucine 500 mg 1 g
Instantized L-Valine 500 mg 1 g
Musclebuilding and Recovery Plus Matrix
Betaine Anhydrous 1.25 mg 2.5 g
Taurine 1 g 2 g
Tart Cherry Concentrate (as Prunus cerasus) (fruit) 240 mg 480 mg
Coconut Water (as Cocos nucifera) (fruit) 100 mg 200 mg
*Percent Daily Values are based on a 2,000 calorie diet.
†Daily Value not established.
  • Superior Science- Superior Results
  • 36 Servings
  • 20% Free
  • Research & Development
  • ProSeries
  • America’s #1 Selling Bodybuilding Supplement Brand‡
  • Powerful Musclebuilding & Recovery
  • Delicious Taste!
  • University Tested To Build 4X More Muscle¹
  • Shown To Boost Strength by Over 40%²
  • Improves Endurance³
  • Enhanced With Electrolytes
  • Natural and Artificial Flavor
  • Dietary Supplement
  • 4:1:1 Ratio of BCAAs
  • 2.5 g Betaine‡
  • 480 mg Tart Cherry‡
  • Pre, Intra & Post-Workout
  • Made in the USA with International Ingredients
  • #1 Most Clinical Studies in Science
  • 20 Years of Excellence
  • Guaranteed Banned Substance Free
  • cGMP – Manufactured According to cGMP Standards as is Required for All Dietary Supplements

World’s Most Powerful Strength-Enhancing BCAA Formula

MyoBuild® 4X is the most advanced BCAA and recovery formula on the market! A 4:1:1 ratio of BCAAs featuring a scientifically studied dose of leucine, plus isoleucine, valine, betaine, taurine and tart cherry, work to build muscle, increase strength, improve recovery and decrease catabolic activity!


¹Test subjects supplemented with the exact 2.5 g dose of betaine in 2 scoop of MyoBuild 4X built 3.75 lbs of lean muscle in 6 weeks compared to 0.66 lbs. by the placebo group. That’s over 4 times more muscle (vs. the placebo)! Betaine has also been shown in a separate study to enhance muscle endurance.


²MyoBuild® 4X is precisely formulated with a 4 g dose of L-Leucine (in 2 scoops) shown in clinical study to help subjects increase their 5-rep max strength by over 40%~


³The 2 g dose of taurine found in scoops of MyoBuild 4X is clinically show to improve performance in endurance athletes.

Tart Cherry 

Emerging research show that phytonutrients in tart cherries can support recovery and fight catabolism.


For a truly complete formula, precise doses of electrolytes were added to help replenish electrolyte stores that are depleted during your workout!

Muscletech: Superior Science. Superior Results.

Our mission is to develop the most scientifically advanced and effective supplement to help you build muscle and strength, and improve athletic performance. Backed by full disclosed formulas, human clinical studies on fully dosed key ingredients substance and over 20 years of success, MuscleTech delivers superior science for superior results!

‡MuscleTech is America’s #1 Selling Bodybuilding Supplement Brand based on cumulative wholesale dollar sales 2001 to present.

Suggested Use

Mix 1 serving (1 scoop) with 8 oz. of water and consume after your workout. For full effects, mix 2 scoops (2 serving) with 16 oz. of water and consume post-workout. Do not exceed 2 scoops in a 24-hour period. Read the entire label before use and follow directions provided.

Other Ingredients

Citric acid, natural and artificial flavor, malic acid, salt, xanthan gum, acesulfame-potassium, sucralose, calcium silicate, silicon dioxide, fd&c red no. 40.

Contains soy and coconut ingredients. Processed in a facility that also processes milk, egg, wheat, peanut, tree nut, fish and shellfish ingredients.


Note: To maintain product freshness, store in a cool, dry place (60°F to 80°F). This product is sold by weight. Some settling may occur. Shake container before use.

Not intended for use by persons under 18. Do not use if pregnant or nursing. Consult a medical doctor before starting a diet or exercise program or if you have a medical condition. Keep out of reach of children.

Do not use if packaging has been tampered with.


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