Hi there

I used Duac for a short period a while ago, and i used it on my problem areas (forehead). At first i thought it was amazing, it made my skin so smooth, however I found after using this daily for a few weeks, its affects stopped working. I would put it on more or less all my forehead.

Monitor how you react to it as everyone can be different. Ask your Derm or GP as they could provide further insight.

Good luck