AHA, or alpha-hydroxy acid, is a type of organic acid commonly used in skincare products. It is derived from natural sources like fruits and milk, and is known for its ability to exfoliate the skin by removing dead skin cells. This process can help improve skin texture, reduce the appearance of fine lines, and promote a more radiant complexion. In addition to its exfoliating properties, AHA can also enhance the skin's moisture content. By increasing cell turnover, it allows for better absorption of other skincare ingredients. Common types of AHA include glycolic acid and lactic acid, both of which are popular in various cosmetic formulations.