Five Months In, FINNSUL Disrupts Wellness with Record-Breaking Launch

The Rocket Pop launch, which followed only two days of social media teasing, funneled more than 10,000 potential customers onto a waitlist. By executing the collaboration just five months after the brand’s inception, co-founders Finn and Sully McDonough have signaled a departure from traditional, long-lead wellness marketing. The product, a powdered drink mix featuring Cognizin citicoline, L-theanine, and 150mg of natural caffeine, aims to consolidate focus and hydration into a single step.

Maureen Kelly, who previously built the billion-dollar beauty company tarte, provides the operational foundation, while her sons Finn and Sully—students at the University of Texas and University of Miami, respectively—shape the brand’s cultural strategy. By prioritizing entertainment and nostalgia over the clinical, often sterile language common in the supplement industry, the brand is attempting to capture a younger demographic that demands both efficacy and personality. According to the co-founders, the rapid sell-through validates their belief that consumers are no longer willing to choose between functional ingredients and a compelling, creative brand identity.