Purity, Quality - the best in my experience!
As a lifelong fitness enthusiast, I've tried every supplement brand out there.  In the last few years, I've become very concerned about the purity of whatever I'm taking.  So, before switching to ProMix I emailed the company to ask.  I received a reply and was beyond stoked on the info.  They know their sources and control the process.  The owner is personally involved in quality control.  It's a touch more expensive, but worth it to know exactly what's going into your body.  5 stars!!!
Rating: 5 stars