The Power of Every Drop – Unprecedented particle size (0.0008 microns / 0.8 nano-meters) and particle energy. Safe Concentration of 10 ppm. Over 150,000,000 particles of active silver in every single drop. Naturally bio-available (based on particle size and dispersion). Clear and virtually tasteless. Color indicates contaminants, oxidation or additives are present. Can be taken continuously if necessary or desired.