How much taller do you want to be? Do you desire to just improve your height slightly to improve your confidence inside yourself or do you desire such a dramatic change in body form that you go through a full transformation on every level? If you do go through with the full transformation, how would other people react towards you after they see you again?
I would suggest that most people should only ask for 4 inches maximum in height increase. I personally can probably create a program or system within 4 years of full research which can increase a person’s height by 1-2 inches, by decompressing the vertebrate and decreasing the curvature of the spine.
However if you are around 5 feet tall (or shorter) and male, maybe then it would be appropriate to desire something more like 8 inches or even an entire feet in growth. There is objective scientific evidence that shows that a male’s chances for dating and mating success is hindered most likely by his height, beyond any other physical attribute.
However, I would say that desiring for a full 12 inches in height increase would be completely life transforming. There is currently no program out there that comes even close to giving anyone that type of results. I personally have never heard of any story or claim that allowed for up to an entire feet of added height, not even the scams out there.