ESN NITRO WHEY is a scientifically engineered whey protein formula, and is enhanced with the most studied form of creatine for even better gains in muscle and strength. It also features whey protein, which is the most popular type of protein. Whey protein is made up of branched chain amino acids (BCAAs) and silk amino acids (SAAs), and has the highest biological value (the measure of how well your body absorbs and assimilates protein). The whey protein in NITRO WHEY is sourced primarily from whey protein concentrate and whey isolate – two of the cleanest and purest protein sources available. Using these proteins on a daily basis is vital in helping to increase muscle protein synthesis for more muscle size and strength. ESN NITRO WHEY uses a superior high-quality protein to help you increase strength and build more lean muscle.The whey protein used has been filtered using Multi-Phase Filtration Technology for less fat, lactose and impurities than cheaper protein sources. Furthermore, ESN NITRO WHEY is manufactured according to GMP standards, as is required for all dietary supplements to ensure quality and integrity.