Although I don't believe it causes hair loss, I might agree with the fact that increases sebum production and therefore inflammation (?). I've been drinking coffee that consistently since I was 15, so that could be the reason why I, almost in middle 20's, have breakouts here and then. Not to mention the bumps I get on my scalp sometimes along with itchiness, always on the same spots.
I'll start from today my journey without coffee, but I'm aiming go at most 15 days without beverages related to coffee. If I see any difference on my scalp and face, I'll report.
Water only from now on!