AHAs (Alpha Hydroxy Acids) and BHAs (Beta Hydroxy Acids) are gentle yet effective exfoliants widely used in K-beauty to promote smooth, clear-looking skin. AHAs, derived from natural sources like fruit and milk, work on the skin’s surface to lift away dead cells, refine the look of texture, and boost radiance. BHAs, such as salicylic acid, work deeper inside pores to help dissolve excess oil and keep pores clear. Together, they help refine the look of skin tone and pores for a glowing, balanced-looking complexion. As exfoliating acids can increase sun sensitivity, always follow with SPF by day.