Product Description Natures Greatest Secret 20Ppm enhanced colloidal silver is a crystal clear, the high-quality solution which is 95 percent ionic and 5 percent colloidal with a high pH of 9.0. It has antibacterial, antiviral and anti-inflammatory properties, helps heal wounds and cuts and helps treat eczema, rosacea and psoriasis. Other common uses are a natural nasal spray, a Natural Mouthwash and it can even help clear up ear infections. Available in 300 ml bottle. Indications shelf life is twelve months from opening. See all Product description.