i've been doing a lot of research on this the past couple months as i've had a few surgeries myself, and the things i've seen that are legit are hGH, deca and anavar...
there's a chart floating around claiming a certain % of collagen synthesis from deca, eq, etc, but i don't think it's ever been substantiated.
anyway, IGF1, GHRP, etc should help your injury. i'd suggest check out Dat Be True's forum (per Yogi's advice here) as he seems to be the guy that knows peptides.
some applicable links: