As I did my research online, there are many kinds of colloidal silver. Other products may claim that theirs has more concentrated silver therefore its effective. But a study shows that the effectiveness of colloidal silver is not based on concentration but of particle surface area. Having a bigger particle surface area increases the reactivity of colloids in a human body. You can learn more about particle surface area here.
After reading testimonies on colloidal silver users, I have thought of trying it out. Maybe having few silver particles in my bloodstream would do me good. What do you think?