If youre talking about the Randy Holmes Farley home 3 part mix, the alkalinity part is 2 cups baking soda that has been put in the stove at 350 for about an hour, and the magnesium part is a bag of epsom salts. Thats usually in the pharmacy area of like Krogers or Walmart. As far as the Dow Flake, I think Lowes has a smaller bag as well as the larger one.