Creatine monohydrate is the most common form of creatine. A second type of creatine powder is micronized creatine monohydrate powder, which provides a less gritty and more water-soluble solution than other types. Third and fourth, there are buffered and unbuffered forms of creatine. Buffered creatine forms enhance muscle growth by improving muscle pH balance, while un-buffered forms can cause stomach discomfort in some individuals.