Hello, I've drank coffee on/off for nearly a decade. a couple months ago, I also quit drinking coffee and started drinking Yerba Mate. As you can see from the message I posted a few days ago, my skin is almost completely clear (it's only been 2 mos. for me).
For those of you thinking of trying -- I don't think the cure is in the Yerba Mate, it's in the not drinking coffee. Yerba Mate simply assists in doing this by preventing headaches and causing a natural, slight boost of energy.