• University tested to build 4X more muscle*
• Shown to boost strength by over 40%*
• Improves endurance*
• Enhanced with electrolytes*

MuscleTech MyoBuild 4X Amino-BCAA Pro Series is an advanced BCAA and recovery formula. 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.* Test subjects who supplemented with the exact 2.5g dose of betaine in 2 scoops 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.*

MyoBuild 4X is precisely formulated with a 4g dose of L-leucine (in 2 scoops). Leucine is the most critical of all musclebuilding amino acids and has the highest anabolic potential because it activates protein synthesis within the muscle via the mTOR pathway. MuscleTech researchers ensured each serving of MyoBuild 4X has this exact 4g dose of leucine that was shown in a clinical study to help subjects increase their 5-rep max strength by over 40%.* The 2g dose of taurine found in 2 scoops of MyoBuild 4X 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.*

Emerging research shows the powerful phytonutrients in tart cherries, found in MyoBuild 4X, can support recovery after training through the reduction of post-workout pain, and also fight catabolism (muscle breakdown).* For a truly complete formula, precise doses of electrolytes were added to help replenish electrolyte stores that are depleted during your workout.