The honest answer sits between hope and hype. Hypnosis is not a talent generator, and no relaxed state will hand someone skill they have not built through practice. What a small body of research suggests is narrower and more modest: under hypnotic suggestion, some people perform better on divergent-thinking tasks, the kind that ask for many possible ideas rather than one correct answer. Those findings exist, but the evidence base is thin, and early results have been hard to replicate, so the picture stays unsettled rather than proven.
Where hypnosis seems to help, it helps indirectly. Most artistic blocks are not a shortage of ideas. They are the inner critic arriving too early, flagging every line or brushstroke as wrong before it has a chance to exist. A relaxed, absorbed state can quiet that running commentary for a while. With the editor turned down, a person may find it easier to start, to follow a loose thread, to let a draft stay rough long enough to become something.
A hypnotherapist working on creative expression usually focuses on the conditions around making, not the making itself. Sessions might rehearse beginning without judging, loosen the fear that a piece must be good immediately, or soften the self-doubt that turns a blank page into a verdict on the person. These are framed as suggestions a person rehearses, not switches that flip.
The limits matter. Craft is craft. Drawing, phrasing, timing, structure, all of it still has to be learned and repeated, and no amount of relaxation substitutes for the hours. Some people find these sessions loosen something. Others notice little. The variation is wide, and it tracks how readily a person enters the focused state in the first place.
One difference is worth keeping straight. Feeling more creative and producing better work are not the same measurement, and the pleasant looseness of a session can be mistaken for output. The fairer way to read hypnosis here is as one possible way to lower the friction around starting, sitting beside ordinary practice rather than standing in for it.