AHAs (alpha-hydroxy acids) are chemical exfoliants commonly used in skincare products. They work by breaking down the bonds between dead skin cells and surface of the skin, improving texture, tone, reducing fine lines, wrinkles, and promoting collagen production. They also help to brighten the skin, reduce the appearance of acne, and boost the penetration of other skincare products. However, they can increase sun sensitivity, so it's important to use sunscreen and limit sun exposure while using AHA products and to start with low concentrations and gradually increase as the skin becomes accustomed to the produc