I dont have personal exp with roids, but I know from bodybuilding forums that there are some that are less damaging to your hair than other. As I recall it has something to do with how easily the drugs aromatize... And some makes your DHT go crazy and some do not. But you should really ask this question on a bodybuilding forum. I would strongly advice against doing it, but if you have decided to do it, at least be sure to get expert advice on it.