Optimum Nutrition has been selling some of the worlds best products since 1986. They take an extremely hands-on approach maintaining the highest standards of quality. Everything they do is meticulous. The up-most premium raw materials are hand-selected to ensure the final product is as good as it can be, so much so that a Certificate of Analysis is required for every ingredient. Their Gold Standard 100% Whey is also the worlds best-selling whey protein period. They say the company was founded with a mission to bring consistent quality to the market. Not only have they achieved this but they’re constantly paving the way setting even higher standards.