Hi! i'm italian... and i need your help about make-up in the uk

irst of all, I'm gonna introduce myself to you: my name is Francesca and I am italian. I am 25 years old.
I usally write in the correspondent italian website wich is called Alfemminile.com

At the end of November I will be in the UK for a few days. I will be in Cambridge and probably in London for just one day.
I really need to know if I can find Bare Minerals in England... I don't know if you know it... it's the mineral make-up by Bare Escentuals.
I bought a "get started kit" in the USA 2 years ago. and know I would like to buy it again cause I think that that make-up is much healthier for my skin (I'm affected by acne since I was 13 and I've just started a Roaccutane treatment). I can't find it in Italy. L'Oreal and Isa Dora now have a mineral foundation, but they are not as good as Bare Minerals.

Please, I'd like to know if and where I can find Bare Minerals in Cambrindge or in London...

I'm sorry for my bad english, I need to improve it... I hope you understand me.

I hope someone will be able to help me Thanks in advance

Pazzesca