You know that's a great question. I've seen that claim made about silver in many products. I can only tell you from personal experience when I get a cut from shaving and I apply colloidal silver to it I can see it heal literally in minutes. Perhaps that is why they say it repairs DNA. The hows and whys of it I can't tell you, only that it works. Other people I know have had the same thing happen with CS. Perhaps some other folks have had a similar experience with CS. Trapper? Anyone?
PS Hospitals use silver in a product called Silvadine ointment/creme in the burn units. That says alot.