Silver Proline or Super Silver supplement by angstrom minerals is for professional use only. Regular silver will help with most conditions. This Super Silver is twice the strength of regular Angstrom Silver. Silver is not considered an essential mineral as there is no known function that silver plays in the body. Our Liquid Silver Supplement is 99.9 % usable by the body and starts to enter the cell as soon as you put it in your mouth - No digestion required! Made with our special proprietary formulation, Our Dietary Silver Supplement is pure dietary silver and water. No fillers, flow agents or additives.