Designing a custom box for facial oil involves careful consideration of materials, functionality, and aesthetics. Using eco-friendly options like recycled cardboard reflects sustainability values. The box should fit snugly to protect the product during shipping while also standing out on shelves. Incorporating your brand colors and logo creates a memorable look. Functional elements, such as magnetic closures and custom inserts, enhance usability and add a touch of luxury. Ensure clear labeling for product information and consider an unboxing experience that includes a thank-you note or sample, leaving a lasting impression on customers while safeguarding the product effectively.