Personally, I think my dandruff is caused by a history of eczema, shitty New York tap water, and chronic bad juju. After my traumatic episode, I searched the racks of Duane Reade for any type of drugstore-brand scalp treatment, when I came across a familiar face: tea tree oil.
From Midtown or the Village, take the F or D trains that run down Sixth Avenue from Central Park to Washington Square or the N or Q trains that run down Broadway to Canal Street. All four of these trains will take you directly to Coney Island in Brooklyn.
1 CityNightLine/Euronight runs overnight trains from Amsterdam Centraal Station directly to Copenhagen (1 night), Warsaw (1 night), Minsk (1 night and 1 day), Moscow (2 nights and 1 day), Prague (1 night), Munich (1 night) and Zurich (1 night). 2  Travelling with these trains might save you a hotel night.