Power Supplements carefully chooses the origin of the ingredients in its nutritional supplements. This almost always results in the choice of producers from Western Europe, the United States and Japan. These producers take quality controls during their manufacturing processes seriously.nnChoosing ingredients of the highest quality and from renowned producers, right at the beginning of the product development process, is the best way to ensure a pure end product. Is this exceptional? Yes, unfortunately it is. Particularly with nutritional supplements for athletes.