大人用 (Adult) refers to products, services, or content designed specifically for adults. This category often includes items such as clothing, entertainment, and health products that cater to the needs and preferences of mature individuals. The term emphasizes suitability for those who have reached adulthood, typically defined as individuals aged 18 and older. In various contexts, 大人用 can also relate to activities or themes that are not appropriate for children. For example, adult films, adult literature, and adult games often contain mature content that requires a certain level of understanding and experience, distinguishing them from materials intended for younger audiences.