The Bifesta Lip Serum Mask is an overnight lip treatment pack from Japanese brand Mandom. This 8g preservative-free formula features three key moisturizing ingredients: squalane, orange oil, and vitamin E. The dense serum mask adheres closely to lips, providing intense hydration throughout the night while visually minimizing vertical lip lines. Suitable for both nighttime and daytime use, this paraben-free, alcohol-free, and synthetic fragrance-free treatment helps achieve plump, moisturized lips.