Same High Quality Silver You've Loved for Over 20 Years! Pharmaceutical Grade Trusted Silver Brand Since 1994 Dietary Supplement Immune Support 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 Spectroscope) testing. It is the most accurate testing of overall particle size. Colloidal silver particles should range between 1-100 nm for safety purposes. What is PPM? PPM (parts per million) equals the number of silver particles per serving. 50, 150, 250 & 500 PPM are strength levels. 10 PPM formulas may require frequent suggested daily dosage. 1 teaspoon of Silver Wings 500 PPM is equal to 50 teaspoons of a 10 PPM solution.