Phosphorylated creatine is stored in brain tissue and is important for cognitive functions.

“creatine can be stored in muscles as we talked about before but creatine and in particular the phosphorylated form of creatine which is the readily available fuel source form of creatine can also be stored in brain tissue and is actually quite prominently stored in the forebrain the area where the real estate of of your brain just behind the forehead which is involved in planning and action and understanding context so it's very important for cognition it's important for personality too but it's important for a number of different aspects of life that have to do with making plans being able to focus very intensely on your work etc or on anything for that matter all functions that become heavily disrupted in people who have traumatic brain injury and concussion”