Can glycolic acid peels remove acne marks?

In recent years, a novel skincare approach—alpha hydroxy acid (AHA) chemical peeling—has gained popularity. Many people naturally wonder: Can AHA peeling effectively remove acne marks? Details are provided below:

AHA peeling is highly effective for treating red post-acne marks (erythematous marks) and hyperpigmented (brown or black) post-acne marks. However, it yields limited results for atrophic (depressed) acne scars or hypertrophic (raised) nodules.

Visible results from AHA peeling are not achieved after just one session; rather, treatment frequency and protocol must be tailored to individual skin type and condition. Consequently, the specific AHA-based acne treatment plan varies from person to person. Typically, a full course consists of 4–6 sessions, each lasting approximately 30 minutes, with treatments spaced about every 2–3 weeks. The peeling solution is customized by adjusting the AHA concentration to suit the patient’s needs. Your aesthetician will determine the optimal regimen. Generally, a complete course comprises five treatments, administered at 7–10-day intervals. Concurrently, home-care products should be used under medical supervision. If a second course is required, it should be initiated approximately two months after completion of the first.

The concentration of AHA determines its depth and intensity of action on the skin. For instance, low-concentration AHAs can improve fine facial lines, soften deeper wrinkles, penetrate sebaceous glands to provide deep skin cleansing, suppress sebum production, promote epidermal cell renewal, and accelerate skin metabolism—thereby helping to treat acne.