Acid refreshing treatment may cause some degree of damage to the skin, and the exact reaction varies from person to person. 1. Acid brushing is currently a more commonly used cosmetic method, mainly refers to the use of different concentrations of fruit acids on the skin for the application of acid brushing treatment, which can play a role in removing the aging stratum corneum, as well as to promote skin metabolism. 2. Generally speaking, the use of high concentrations of fruit acids without establishing tolerance, or long-term, excessive use will easily lead to damage to the skin barrier, and may even lead to redness, pain and other sensitive skin manifestations, and the severity of the adverse effects are related to the individual’s physical condition. When choosing a low concentration of fruit acids and using them infrequently, the safety factor is relatively high and the effect on the skin is less. It is recommended that patients go to a regular hospital and under the operation of a professional doctor to avoid adverse reactions during the treatment process.