Originally Posted by
entropy
It depends how much saw palmetto is in there really. I would say it would either be totally useless as a topical or have the potential to cause problems. If the saw palmetto is binding to the reductase enzymes locally, its not efficient enough to slow down "balding" cause there's reductase enzymes converting hormones all of the time. If the saw palmetto is getting into the bloodstream, you might have a problem.
If its any help to you, the guys who tend to experience problems with saw palmetto are usually taking pretty big doses of standardised extracts.. So it probably takes a lot of the stuff to fuck shit up internally.
That being said, I wouldn't risk it. If my hair starts falling out again (ever since my propecia encounter, it's been steadily growing back. Score) I might consider nizoral. Might.