Inside Serotonin Club NYC: The Flatiron Studio Built for Community, Connection, and a Seriously Good Workout
From their signature Serotonin Boost class to rescue puppy yoga with Woof Wellness, here's everything you need to know about one of Manhattan's newest boutique fitness destinations.
There is a particular quality of light that filters through the second-floor windows of an old Flatiron building in late afternoon. In October 2025, two female founders opened the doors to a space they had spent months imagining into existence: a boutique fitness studio built not just for results, but for the kind of connection that outlasts the workout itself. They called it Serotonin Club NYC. The name is both literal and aspirational. The founders understood perhaps from their own years in studios across the...
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