Refresh AHA BHA Vitamin C Lip Plumper by Cosrx provides fuller, smoother lips with a healthy shine. This advanced formula combines AHA, BHA, and Vitamin C to exfoliate dead skin cells, protect against free radicals, and stimulate collagen production. Enjoy firmer, more youthful lips with enhanced natural color. Perfect on its own or as a base for other lip products. 20 g.