Argentyn 23 Professional Immune Support – Colloidal Silver, Bio-Active Silver Hydrosol, 23 ppm, Liquid Dropper, 2 Fl Oz (59 mL)

Customers find the colloidal silver supplement effective for immune support, particularly for sinus infections, and appreciate its quality, noting it works on all types of ailments. The product receives positive feedback for its purity, and customers report feeling better within a few days of use. While some customers consider it worth the price, others find it expensive, and opinions about taste are mixed, with some noting a mild metallic flavor.