High stabiltiy, high quality, high purity colloidal silver hydrosol. Bio Harmony and its sister label Silver Harmony offers a 90% minimum ion particle content. We offer colloidal silver hydrosol at 15ppm or 20ppm as a mineral health supplement From our Silver Harmony range. Our Bio Harmony range offers colloidal silver at 0.3% or 3.8% for industrial use such as water treatment or impregnation of various surfaces for long lasting disinfection effective for up to 1 year guaranteed.(See potters for peace). Our high concentrate colloidal silver contains silver metallic particles with an average particle size of 5nm. It uses a patented process that has been in use since 1967 and shares the same technology as the famous Mexican brand Microdyn, owning the same patented rights. Our product is 100% guaranteed, with proven effectivity from analisis. We offer very competitive prices and maybe have the best price on the market without compromising on quality. We also offer private label.