The rapid growth of the beauty and skincare industry has significantly increased the demand for online shopping platforms that provide seamless user experiences, personalized product recommendations, and secure transactions. This paper presents Blushee, a modern e-commerce platform developed using the MERN Stack (MongoDB, Express.js, React.js, and Node.js) for makeup and skincare product management and online purchasing. The platform provides features such as user authentication, product categorization, shopping cart management, wishlist functionality, secure payment integration, order tracking, and an admin dashboard for inventory management. The frontend is designed with a responsive and aesthetic user interface to enhance customer engagement, while the backend ensures scalability, security, and efficient database management. The project demonstrates how full-stack web technologies can be utilized to build a robust and user-friendly beauty product marketplace.