The COSRX Refresh AHA BHA Vitamin C Booster Serum (30ml, is a potent brightening and exfoliating treatment designed to revitalize dull skin. Infused with AHA, BHA, and Vitamin C, it gently removes dead skin cells, unclogs pores, and fades dark spots for a smoother, more even complexion. This lightweight serum also helps reduce acne breakouts while improving skin texture and radiance. Ideal for those struggling with hyperpigmentation, uneven tone, or rough skin, it delivers a refreshed glow without irritation. Its gentle yet effective formula makes it suitable for all skin types, including sensitive skin. Regular use promotes a clearer, brighter, and healthier-looking complexion over time.