Looking for a product to help brighten and even out your skin tone? Check out the Cosrx Refresh AHA BHA Vitamin C Booster Serum 30ml. Formulated with 7% vitamin C, this serum helps to brighten and smooth skin. Additionally, it contains niacinamide to help reduce the appearance of dark spots and uneven skin tone. Use it in your morning skincare routine for a refreshed, radiant complexion!