blah, blah blahSilver colloids are NOT “contact-antiseptics”. Unlike bleach or alcohol, they do not kill in a few seconds by breaking the cell-walls of pathogens. They require longer exposures. The microscopic silver particles of a colloid (now-a-days people are calling them nano-particles… quite trendy) must penetrate the bacteria or fungus in order to kill them. This takes time; from 2 to 30 minutes depending on the organism that you are hoping to kill. Some of the in-vitro