Is 20mg per day enough to clear up some greasy skin, black heads around shoulders, Im posting this on behalf of a mate of mine, he does alot of modeling work and has lost out on a few jobs as they said his back wasnt clear enough. He went to see the doc and they said he skin was no where near bad enough for accutane or even retin a. Just told him to use some OTC stuff, obviously this isnt really much use to him as he needs results and quite fast, would 20mg accutane do the job?