well...
Go to minoxidil.com there you will find just about everything. Im prone to hair loss as well and to be honest I put alot of time and money in preventing it. I first noticed it when I was 17 now Im 25 and I have been able to keep almost all my hair. Doctors told me when I was 17 that I will be bald by 27, well fuck him. This is what I use:
-propecia (1 x a day)
-L-lycine (3 x a day)
-saw palmetto (3 x a day)
-xandrox (morning)
-minoxidil/spirolactone cream (night)
I know its a little much but it works, I have no problems while on cycles, and though I dont have 100% full head of hair Ive slowed it down significantly and Im happy with it, and IMO thats all that matters.