“Colloidal Silver” has been used for over 125 years in countless applications, and encompasses a wide variety of silver products. Many contain salts, proteins, compounds or stabilizers—all of which affect silver’s safety* and efficacy.* Bio-Active Silver Hydrosol represents the ultimate refinement of colloidal silver. It contains >98% bio-active silver ions and silver nanoclusters in pharmaceutical-grade purified water. Nothing else. Our unique silver species, with a verified and unmatched particle size, remains in its most active state for use within the body.