Rouge is a cosmetic product used to add color to the cheeks, enhancing the complexion and providing a healthy glow. It typically comes in various forms, including powder, cream, and liquid, allowing users to choose based on their preferences and skin types. Applying rouge can help define facial features and create a more youthful appearance. It is available in a wide range of shades, from soft pinks to deep reds, making it suitable for different skin tones and occasions. Proper application techniques can enhance the overall makeup look while ensuring a natural finish.