I don't know of one in S. Telmo, but "Orange", on Echeverría in Belgrano, turns out very goodlooking (if expensive) cuts. But, then, I'm a man and so know what appeals to me better than I know what's the latest style.
Hey, I need a hair stylist too, so I tried to find Orange by walking up and down Echeverria, but I was unable to find it. Could you tell me what cross street it's at? I also wasn't able to find it via google. Thanks,Ken