Dropper Extra Strength Dietary Supplement Pharmaceutical Grade Trusted Silver Brand Since 1994 Safe - Strong - Stable A higher PPM atomic pharmaceutical grade colloidal silver and pharmaceutical grade water not electrically processed unlike many of its competitors. We specialize in offering the highest quality ingredients in our colloidal silver products. Our products are safe for the whole family and backed by independent clinical university and in-vitro studies. In comparison to other colloidal silver products on the shelves today Silver Wings colloidal silver is less expensive because of its potency making it the overall best value! Highest Quality: Contains Pharmaceutical Grade colloidal silver and Pharmaceutical Grade water. Amber Color : The true color of a higher PPM pharmaceutical grade colloidal silver is amber not colorless. Easily Absorbed: Provides the highest percent of the silver particles at 2 nm for optimal absorption. Testing & Safety : We specifically use NCS (Nano-Photon Correlation Sp