I use a face mask by "Korres". It is the only one i have found, that i really like. What i notice about face masks is that, they really deep clean. I have VERY oily skin, and it seems to help with that, and make my face really soft, but as for spots, and acne....nothing. I like to use it twice a week, or when i feel like i need a really deep cleansing.
I have VERY sensitive skin, and LUSH products gave me hives.
My mom and sister love them, i just havent found one right for my skin. I think it must be something they add to it.
Also, i really like "Queen Helene Mint Julip" mask, but i dont know if you could get this in the UK. Its about $4.00 where i live, and it works pretty well.
Anyways, if i can think of anything else, i'll pass it your way!