Do you have any experience using silver spray such as ACS as an antimicrobial?

Chris Kresser: I think you’re talking about colloidal silver. Supposedly it’s an effective killer of bacteria, viral, fungal, etc., and doesn’t affect beneficial. “So I can’t find any research on it.” Yeah, me neither. I’ve looked high and low for research on colloidal silver and there really isn’t any. So lack of proof is not necessarily proof against, but I have just been reluctant to make that an essential part of my protocols because I can’t find any research indicating efficacy or safety.