by KIY » July 14th, 2012, 7:31 pm
Well, if it is physical transformation you are talking about, the evidence; unfortunately, is that it is incredibly difficult, at best, to achieve. The majority of the evidence tends to be in favor of physical transformation via hypnosis not being possible (although there seems to be some which says otherwise, something I find fascinating, and others infuriating.)
If you dig on this site you will find claims that the breast growth files have worked in some cases, that the penis shrink files have worked in some cases, and that the pre-puberty file worked in one case. The difficulty is that the documentation is, for the most part, lacking in these cases-- and that at least some of the effects-- breast growth and penis shrinking-- can be achieved to one degree or another by fat accumulation. (The regression through puberty person vanished off the web site rather suddenly, but reportedly sent some "before and after" photographs to some people. No photographs were posted on this web site.)
Apparently, hypnotism has been used to treat warts and a type of genetic skin problem (whose name I don't recall at the moment). These both would be physical changes, but not to the degree most people on here want. (Me? I'd love if it the "body of an 18 year old" would work! Or even the reversing puberty one.)
Right now my money would be on technology creating a reliable way to physically transform, if I had any.
Mental transformations are another matter. The Sissy files and Forced Gay files have reputations of working fairly well, although those who use them tend to WANT the effects to work, and convincing oneself that they are now gay, a sissy, or can only wear feminine undergarments is, therefore, much easier than changing one's DNA.
There are a lot of folks much more knowledgeable than me on here, so maybe they will chime in and correct and/or clarify what I have posted. Also, knowing what you are trying to achieve would be very helpful.
Good luck!