I've wondered the same thing, and I think the answer is yes -- growth hormones would probably make the facial bones more robust but definitely wouldn't be an alternative to jaw surgery (which is needed to lengthen and reposition bones). I've been wanting to try growth hormones to improve my facial features and make them more masculine. It also seems that the rest of the bones in my body are underdeveloped in width, and growth hormones would probably improve that. I suspect there is a significant link between bone development in the face and bone development throughout the body. People with underdeveloped jaws and faces probably have thinner bones everywhere else.
I've been thinking along these lines for a while now. Getting jaw surgery then taking hgh for a few years, and combining this with some serious work out routines. I'm not sure whether it's possible to go from complete geek to badass by doing this, but I can't live the rest of my life never knowing.
I don't understand why people are so anti-drugs on this forum. Every muscle guy actor who ever worked in hollywood took drugs. Schwarzenegger, Stallone they all made millions doing this. I'm not a meathead who wants to blow up his body to be in the movies I just want to look and feel normal.