Amino acids are the building blocks of protein, which help promote muscle growth and maintenance. Essential amino acids are those that your body needs but cannot produce. You can get them through your diet, eating foods like meat or eggs, or by taking a supplement. There are a total of nine essential amino acids – three branched-chain amino acids (BCAAs) and six other essential amino acids. EAA provides 16 grams of EAA per serving, making it a top source of amino acids for promoting muscle growth. Research has shown that EAA: They prevent muscle fatigue during resistance training. They improve lean body mass. Helps develop muscles. BCAAs have been shown to reduce muscle soreness after resistance training. Along with amino acids, this product also contains vitamin B6, which contributes to normal metabolism, and the electrolyte Magnesium, which helps muscle function and reduces tiredness and fatigue. It also contains piperine (black pepper extract) and is low in sugars, fats and calories. EAA is ideal for those looking to increase their amino acid intake to build muscle.