I've been visiting this guy's website for a while; he's got some good stuff.http://www.naturalheightgrowth.com/2012/08/07/1-cm-increase/
It would be so great if that site found a way to be just 2CM taller -everything counts. If I could be 4CM taller by some kind of stretching/supplement/strange technique I could lengthen 6CM and be a glorious 188-9CM. That would be the dream.
I knew this website, everything written is just a load of bullcraps, the guy say you can gain 4 cm, which is far from being true, more realistically speaking, you may gain, nothing more one centimeter, unless you have a lordosis or a kyphosis