Knowing the customer is at the heart of Korean skin care brand numbuzin. The brand's slogan “What’s Your Number?” represents its mission to find bespoke answers for each person’s skin concerns. Numbuzin responds with the right products, which are named by numbers instead of hard-to-remember names. Its bestsellers include the No. 6 Deep Sleep Mask Serum, No. 3 Bodlebodle Repair Serum and No. 3 Shining Essence.