Just to let you know what direction I would go.
I'd create some sort of nano-technology that was able to reorder the DNA down to specific qualities you would design and desire.
You would take your DNA, rearrange it to get the results you want and then use nano-technology to deliver it.
It would be freaking awesome. You could rearrange your whole body, reverse aging, the sky's the limit.
I would call it Nano-design DNA Reordering Technologies