Optimum Nutrition's Gold Standard 100% Whey uses Whey Protein Isolates as the primary ingredient. Combined with ultra-filtered whey protein concentrate, each serving provides 24 grams of all-whey protein and 5.5 grams of naturally occurring Branched Chain Amino Acids (BCAAs) which are prized by athletes for their muscle building qualities. With +6 tempting flavors to choose from, ON Gold Standard 100% Whey gives you plenty of ways to keep workout recovery interesting. To instantly check the authenticity of your ON product, SMS ON your 6 digit unique code (on the pack) at 57575 or visit our website AUTHENTICATEON.in