Silver Select provides all-natural products that are proven to be effective without the use of harsh chemicals that negatively impact your health, home, and environment. Our Immunity Silver products are formulated with 30 ppm (parts per million) bioactive colloidal silver, making them 3x more potent and more effective in fortifying your immune defenses.* We only use the purest colloidal silver to promote maximum effectiveness, optimal absorption and increased potential benefits*.