Pure 47 Spherical Nano Silver Supplement (SNS), the natural, elementalway to support your healthy immune system! Our SNS is made with only two ingredients: 99.99% Spherical Nano Silver particles and pure deionized water. There are no fillers, additives, salts or proteins. Due to the tiny particle size and purity, you get a superior silver supplement with pristine quality and potency on the market.