isotretion 0,5 + Erythromycin 20,0

I still do not read about this here, the product its called isotrexin, basically its isotretion and Erythromycin as a topical gel..

More information (its in portuguese ) http://www.stiefel.com.br/images/feliste/p...%20-%20bula.pdf

So, i was wondering... its a topical accutane it should have some good results...

How is it called in(sorry if its not ''in'' i still dont get this on/in stuff ) US?

Supplements like Whey Protein r bad for acne?

First sorry for my lame english, im from brazil...
I really want to know if supplements like Whey Protein, BCAA are bad for acne..
?