Wonder Foods colloidal silver contains 50ppm and can be used as a water sanitiser.
Ingredients
50mg/lt Silver (Ag) activated in deionised water (50ppm).
Directions for Use
Add ½ teaspoon to a glass of water and leave to stand for 5 minutes.
To sanitise water: Combine 1 teaspoon with 1 teaspoon of 3% Hydrogen Peroxide to each litre of water and stand for 20 minutes.
Do not use with metal instruments or containers.
Wonder Foods colloidal silver can be used as a water sanitiser and contains 50ppm. Made by a unique patented method that guarantees it is stable as a colloidal solution for the life of the product and is made in a Health Department approved facility.