One short question, does accutane thins or thickens the skin.

Most of the accutane users say that it it thinned their skin but the 3 studies that I've read say that it really thickens the epidermis and that the dermis stays about the same, so overall orally taken isotretinoin thickens the skin.

So what's really the truth, does orally taken isotretinoin thins or thickens the skin.