It's beyond magical for killing bacteria and virus--no good for fungus, and pulse away on any kind of filling--it just pulls the pulse to it and you kinda have to adjust where you're aiming it.
It really helped with that gingivitis stuff I had, but I didn't really get rid of that until I ended up so over-alkaline for months--after I finally got that wrangled back down to the 7.4 range (was up around 7.9), I noticed it was finally gone. But boy, that's a sucky way to do it--it was very uncomfortable. But I never found the pulser to do anything special while using Colloidal Silver .
The way silver gets hawked here makes me think most of the colloid silver maker companies are now owned by the pharmaceutical cartel, too. For sure they own the big silver selling 'health' companies.
And it's safe to push, because, from my experience it's nearly useless so it's no real threat to their drugs for stuff. The herbs I use, the pulser and the zapper are far more effective than silver is---plus, like the dental scam, there's a dedicated sales rep---er---'helpful' poster who predictable hawks---er---recommends it for nearly everything. Be suspicious of such hard core over representation. The one thing it is good for is topical stuff when used in a gel or ointment, but internally it just caused high blood pressure for me.