DEFEND AGAINST MUSCLE BREAKDOWN. Defend is an anabolic and anti-catabolic supplement, containing powerful levels of 2:1:1 BCAAs, other essential amino acids, peptides, hydrating nutrients and electrolytes. The most important structural units of muscle tissue are amino acids - and from the standpoint of driving muscle growth, Leucine is the most important of all and is one of the 3 BCAAs, which are the only amino acids metabolized within muscle. With 7 grams of BCAAs and 3.5 grams of L-leucine and PepForm Leucine peptides, Defend delivers research-backed dosages of Leucine suggested in scientific studies to increase muscular power and endurance to amplify the strength response to weight training.* Don't be fooled by low-dosed BCAA formulas that don't contain higher concentrations of Leucine. Research suggests that the full 3.5 gram dosage of Leucine - as found in Defend - has a significantly more powerful effect on muscle-building activity versus less than 2 grams. Additionally, Defend contains patent-pending, PepForm, high-yield leucine peptides, specifically manufactured to support solubility and absorption. These are "peptide bound", so they are bonded together, giving them unique absorption and bioavailability characteristics. Leucine really is the key to triggering muscle protein synthesis within the body. This PepForm technology makes it possible to deliver leucine in a more soluble, highly absorbable form.