Salud, a vitamin drink brand, leverages quizzes to capture valuable zero-party data and personalize its product recommendations and marketing efforts. The quizzes are designed to be concise and visually appealing to maintain a high completion rate. The quiz results page shows optimized product recommendations and also kicks off personalized post-quiz email flows. The first-party data from these quizzes enables the brand to produce highly targeted marketing campaigns, personalized product recommendations, and tailored content.