What is colloidal silver?Colloidal silver consists of small silver particles suspended in liquid, usually water. Colloidal silver has been used for many purposes, both topically and internally. Why choose Vitacost Colloidal Silver?Contains 10 ppm (parts per million) of silver per each single-teaspoon serving.Each bottle supplies 48 servings.Exceptional quality at an extraordinary value.About VitacostAll Vitacost products are laboratory tested to meet FDA standards for identity, purity and composition. All products are tested for heavy metals, microbiology and contaminants. Vitacost products are produced in a NSF Certified facility. Freshness is guaranteed. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.