▶️ AHA: water-soluble acids made from sugary fruits. They help peel away the surface of your skin so that new, more evenly pigmented skin cells may generate and take their place. After use, you’ll likely notice that your skin is smoother to the touch. Primarily used for enlarged pores and mild pigmentation.
▶️ BHA / Salicylic Acid: oil-soluble. Unlike AHAs, BHAs can get deeper into the pores to remove dead skin cells and excess sebum. Primarily used for acne and sun damage. Salicylic acid is the most common BHA and an acne relief ingredient certified by the Korean FDA
▶️ PHA: a type of hydroxy (or fruit) acid. It can help hydrate skin and boost skin cell regeneration, which helps reduce the appearance of fine lines and wrinkles. Compared to similar exfoliating ingredients, they’re less irritating, especially if you have sensitive skin.