Experience the ultimate skin transformation with our Vitamin C Booster Serum, a lightweight and hydrating formula designed to brighten your complexion and rejuvenate your skin, while effortlessly combating early signs of aging for a radiant glow. Infused with pure Vitamin C to enhance radiance, Super Vitamin E to fight signs of aging, and Hyaluronic Acid for deep hydration, this serum not only reduces fine lines and wrinkles but also delivers essential moisture for a youthful appearance. We recommend doing a patch test first to ensure compatibility, especially given the high concentration of Vitamin C. To use, simply shake the bottle 1-2 times, apply 2-3 drops once or twice daily, and for daytime use, always follow with SPF 30+ sunscreen. You can even apply it under the eyes—just be careful to avoid direct contact with your eyes. For maximum freshness and effectiveness, store your serum in the fridge to prevent oxidation. True to COSRX’s dedication to quality, this hypoallergenic serum is dermatologist-tested and free from harmful ingredients like parabens, sulfates, and phthalates, giving you a gentle yet powerful addition to your skincare routine that your skin will love!