Nathan and Aaron dissect Medik8’s unique “CSA” framework (Vitamin C in the morning, Sunscreen by day, Vitamin A at night), explaining how clear, habit-forming routines became a cornerstone for consumer loyalty and retention. The episode unpacks Medik8’s growth strategy, including their unconventional start through professional channels like medispas and dermatologists, the transition to retail and D2C, and their eventual partnership with private equity for rapid expansion into the US.