Manufactures laboratory produced Sovereign brand colloidal silver, and offers laboratory analysis of colloidal silver products.Natural-Immunogenics - Manufacturer of Sovereign Silver, Argentyn 23 and Other Colloidal Silver Hydrosol Products Name: Email: Your Privacy News Silver Hydrosol Education in Washington, DC The Second Annual NNFA East Education Day features an education presentation on Silver Hydrosol by Stephen Quinto See all news articles » Events April 28, 2007 Alive Expo! World Congress Center, Hall C1 Atlanta See all events » Argentyn 23 Our Professional Formulation Arg