In reply to Jennifer (Fl),
With colloidal silver, ppm is just one way to describe how much silver is in an actual liquid suspension. It probably would be less confusing to just say how many milligrams of silver are in a given amount of the liquid suspension, but manufacturers have chosen to use parts per million instead of milligrams. Most other supplements use milligrams and this is easily understood with minimal confusion for consumers. For example, a one liter bottle of 10 ppm colloidal silver contains 10 milligrams of silver, a 500ml bottle of 20 ppm CS contains 10 milligrams of silver, a 250 ml bottle of 40 ppm CS contains 10 milligrams of silver and a 125 ml bottle of 80 ppm CS also contains 10 milligrams of silver. So these four examples will all deliver 10 milligrams of colloidal silver per bottle, even though they are all different parts per million. Based on available studies and the average amount of blood in the adult human body it can be roughly estimated how many milligrams of silver need to be taken per day in order to achieve an effective dose. The amount of milligrams of silver per dose is what is important, so when people say they take 5 teaspoons of silver three times per day, it doesn't mean much, unless they also say what the parts per million is, whereas if they say they take 5 milligrams of silver three times per day, it is clear that they are taking 15 milligrams of silver total per day and there is no need to use parts per million.
If a person already has 20 ppm colloidal silver, but would prefer to have 10 ppm colloidal silver, they just need to add an equal amount of distilled water to their 20 ppm silver and they will have 10 ppm colloidal silver.
To get the best effect for topical use, keeping the topical application (dressing) wet or moist is very effective for rapid healing and neutralizing most types of pathogens .