Other forms of creatine include HCL, kre - alkalyn, and Ethyl Ester, which can range in their efficacy and can be more difficult to find. (supplementscience.net)
Unfortunately research has shown that it is unstable in liquids just like other forms of creatine (11) and it also has no greater retention than creatine monohydrate (12). (fitoverfat.com)
You don't want anything combined with it, you don't want any other form of creatine, you don't want a product that just happens to contain creatine, you don't want flavored creatine (it's completely tasteless and odorless, by the way), you don't want creatine capsules. (acaloriecounter.com)