The primary packaging solution for lip gloss and liquid concealer is the double-ended empty container that features a lip brush. This container is designed to hold and dispense the product with ease, ensuring that the user can apply the makeup without any hassle. The double-ended feature allows for two products to be stored in one container, providing convenience for those who use multiple products. Furthermore, the inclusion of a lip brush ensures precise and even application of the product. This packaging solution is a must-have for anyone who values ease of use and convenience when it comes to their makeup routine.