The Cosrx Refresh AHA BHA Vitamin C Lip Plumper is a multi-purpose lip treatment that plumps lips to give them a full and smooth look. It uses a combination of exfoliants and nourishing ingredients for supple, energised lips. The lip plumper can be used in the day as a lip volumizer, or overnight as a lip treatment for dry, chapped lips. It infuses hydration for soft, smooth lips that are the perfect canvas for lip products applied on top. With mild AHA and BHA, it exfoliates dead, flaky skin, while Vitamin C helps nourish and keep them healthy. The gentle ingredients also make it suitable for all users.