Clay Masks For Oily Skin and Blackheads?

I need a good facial mask that i can get from a drug store that help with blackheads and oily tzones.Clay Masks For Oily Skin and Blackheads?
The best i have ever used is from the Botanicals range at Boots (in the UK, or if you are in the US, go to Target, they carry some Boots stuff, including this mask). It's just called something like Cleasning Clay Mask... it's not expensive and it's excellent.