Where can a person purchase Mac cosmetics online?

If you are in the UK, then you can either order off their website or go to Debenhams. I personally look on eBay and look into detail to see if it is fake, as i can not afford it,

If you are in the us, you could go to the mac store or find a mac counter at Macy's, or you could also look on line

Again if you are in the uk you could look on this place called fragrance direct for discounted mac stuff