Higher PPM is Better
PPM is not a measurement of particle size. It is a measurement of silver content.
Much of the confusion among consumers of Colloidal Silver has been about the optimum concentration. Misinformed manufacturers believing in the old axiom that “more is better” have created this confusion by giving out incorrect information. It is a large amount of particles that is necessary, not a large amount of Silver.
When looking at product with higher PPM usually it is due to large particle size. (Silver Protein)
Through testing we know that 3-10 ppm is effective and any more is typically wasted as the body doesn’t utilize the rest.