Bliss Triple Oxygen Instant Energising Mask
I am not going to beat around the bush, it's fantastic. My skin is glowing, pores are minimised and I am completely sold. You put it on instead of cleansing (although I wouldn't put it on top of make up) and it's a sort of coral gel. Then it foams up on your skin and turns white and bubbles. It's quite fun. You leave it on for 5 minutes and then rinse off.
I've used it twice since Monday (it says up to three times a week) and my skin really does look good. It is very expensive but you hardly need any so I think it will last a long time.