We partnered Miffy with HiSmile for a toothpaste and toothbrush collaboration that became a viral sensation with over 30 million impressions in its first week. Blending Miffy’s timeless charm with HiSmile’s innovative oral care, the collection introduced a sweet apple fluoride toothpaste and a smart electric toothbrush with three intelligent cleaning modes, designed for all ages. This playful yet functional collection reimagined daily routines, combining nostalgia with wellness. Featuring Miffy’s iconic design and HiSmile’s science-backed formulas, the limited-edition products underscored a shared commitment to joyful self-care. The collection achieved remarkable success, selling out in parts of Europe and Australia within its first day.