Miralax is a great tool for kids with "bathroom issues". Within 2-3 days of using Miralax daily, my son has an easy bathroom movement, regardless of whether he wants to have one or not. Miralax claims that it disolves in any liquid, but I found that it stays grainy and changes the texture of cold liquids if added as a powder. Now I add one capful of Miralax to one ounce of hot water, mix and let cool. It liquid form, Miralax can be added to any drink without changing the flavor or texture. Thank goodness for this product. After struggling with for 3 years with "retaining" issues, and trying every product on the market, I now use only Miralax. Works great, price is great, no funky color, no fake cherry flavor. This product will absolutely work.