Whey Protein Isolate is the superior form of Whey and a rich source of protein (90%). It is obtained when Whey Protein Concentrate undergoes an additional filtration process that leads to further reduction of fat and lactose. Whey Isolate has a great number of essential amino acids, with a negligible number of fats and lactose. The milk-derived protein is not just a dense source of pure protein but has many beneficial aspects that make it the best protein supplement. It has the highest biological value (159) among the protein sources and the highest BCAA concentration.