It is not anti-inflammatory effect that prevents hair loss.PolfaJelfa said:Foxie...its an anti-inflamatory. Yes its primary use is dandruff. But it helps with states of inflamation on the scalp which cause shedding.
No it does not cause hair loss.
Technically, it is only approved for dandruff.
Dandruff is not cause of hair loss.
Nizoral 2% also has some anti-androgen effect (I have read the original study from 1980's).
Probably when used alone, it has only a modest effect. But it may prevent any further shedding, and may be more effective when used in combination with something else.