The potency isn't necessarily the same. You can have high PPM, but have large particles which only it cover a small area within the body. The stronger products are those with smaller particles(under 20 nanometers) which can spread over a larger amount of tissue and completely eliminate infection.The higher the PPM the stronger the product. But, remember that stronger products carry higher risks of agryria, so you have to balance that too. I like the Dyna products.