It was 2010 when Carlos Flores and Mark Krieg founded NYC Curls. Two years later, the duo rolled out their first products—cleanser, conditioner and gel for curly hair—and they have been profitable ever since. Having gained EU certification in 2015 and adding liter size containers in 2016, NYC Curls can now be found online through Amazon and at select salons in the US, as well as online in the UK, the Netherlands, and its newest market: Australia. Still the only employees on the payroll,...