I gained alot of good weight running a couple cycles and have ultimately suffered from serious stretch marks. WHat are some ways of healing these up if possible?
Stretch marks are scars, you will not get rid of them. However you can improve their appearance with some specific treatments like peeling and laser. The newer the stretch marks, the better the results.
not much of anything you can do aside from surgery... as pointed out, there are some lasers that can possibly increase collagen but chances of them doing a lot for you are very slim