anybody try these before?

http://www.acnepractice.com/store/categories.php

Wondering if anybody has tried these and if they work.
the sunblock is non-comedogenic and i'd be interested if it didn't break me out.

has anybody tried these?

http://www.acnepractice.com/store/index.php?cPath=24

it looks like it's a good exfoliator, but darn expensive. maybe i'll try the paste, but if it's the same as dan's aha then it would be a waste of money.