I have used Colosan (a magnesium oxide powder) with lemon in the past and it worked great. I used it once in the morning and once before bed. You are only supposed to use it temporily (maybe 2 weeks)everyday for a complete cleanse and then you should do it maybe once or twice a week maximum. The levels of magnesium are really high, something like 4000mg per dose. You can take smaller doses of magnesium everyday, but not that much.