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The subjects applied topical 2% KCZ lotion (Nizoral�) almost every day during or immediately after hair washing with their own unmedicated shampoos.
I'm considering jumping on the cream too. Although the article talks about androgen receptor disruption, and generally it inhibits some steroid pathway enzymes. So you should watch your T/E ratio, given you are on propecia already.
Also, I heard some rumors that it stops working after some years? But don't know the reason yet.