Argentyn 23® is a professional grade of silver hydrosolwhich is available only through licensed health care practitioners. Like Sovereign Silver, it represents the ultimate refinement and most significant breakthrough in colloidal technology, having consistently produced the smallest particles ever seen in colloidal silver products, with the most unique chargeattributes (98% positively charged). The manufacturing technique is proprietary but particle size and particle charge have been confirmed by third party laboratories and universities. Argentyn 23 does not use additives or stabilizers, nor does it contain salts or proteins (often used to keep silver in suspension, but which create silver compounds). It is pure, meaning it contains only 99.999% pure silver suspended in pharmaceutical-grade purified water.