[amai]

How comes people in the gym don’t seem to profit from that?

Maybe the reason is that you also need to train your brain, when you are taking creatine. Otherwise it is just wasted.

It is the same if you just take creatine, but don’t do any sports. It will have no effect.

[wtetzner]

You need to take a larger dose. Your muscles absorb it first, so you end up needing to take a lot more to get it to your brain cells.