Types of fruit acids today, fruit acid (Hydroxy Acid) has been widely discussed by using fruit acids to help increase or accelerate the rate of peeling of epidermis cells to fix rough skin problems, hyperpigmentation, blemishes, wrinkles or pits, which may be mixed in the cream with different concentrations, or a dermatologist has used it in peeling to get more effective in solving skin problems. In addition to being used, there are many types of fruit acids that are classified today as follows. 1. AHA (Alpha-hydroxy acid) would have heard often.