Ι am researching about this and the general meaning is that Canadian laws are more strict than USA's. I have heard that canadian products should be approved by CHFA and to provide some human studies on the ingredients they use. Is it real? Also, I see that all of the canadian brands meet cGMP guideness such as Pharmafreak, PVL, Nutrabolics, Interactive ,Magnum Nutraceuticals and others. But, what about the raw materials? They can meet cGMP but they can buy their materials from China, Asia, Eastern Europe and other unreliable sources. Have they real "pharmaceutical grade quality"? Many questions need to be answered...