Replied by Ted (Bangkok, Thailand) on 11/17/2009
It's much more easier to obtain Magnesium Chloride or Magnesium citrate, otherwise you need even more chemicals just to convert magnesium hydroxide to magnesium chloride. Also, there's only about 8% magnesium hydroxide in the laxative solution. It's not a lot. 8 grams magnesium hydroxide per 100 grams of water.