How to Repair the Skin After Chemical Exfoliation

In recent years, “chemical exfoliation” (i.e., applying topical acids) has grown increasingly popular. Many women believe this treatment improves skin appearance but overlook the crucial post-exfoliation skin recovery process. Specific recommendations are as follows:

After chemical exfoliation, the stratum corneum becomes thinner. Therefore, high-performance skincare products—such as toners, moisturizers, and serums—should be temporarily discontinued. The primary focus of post-exfoliation skincare should be barrier repair: simplify your routine and product selection, and opt for hydrating, soothing toners and moisturizers, along with gentle, minimally formulated masks.

If skin remains dry after using toner and moisturizer, apply a hydrating, moisture-locking face cream. Especially for dry skin types, a rich, emollient cream may be applied to the face—but avoid over-application or excessively thick layers.

Sun protection is essential following chemical exfoliation. UV radiation peaks during summer months, and unprotected sun exposure can worsen post-acne hyperpigmentation. Immediately after exfoliation, it is advisable to avoid sunscreen application directly on the skin; instead, use physical sun protection measures such as umbrellas and wide-brimmed hats when outdoors. If sunscreen is necessary, opt for mineral (physical) formulations to minimize potential skin irritation.

Importantly, chemical exfoliation should always begin at a low concentration and be gradually increased. Overuse may compromise the skin barrier, triggering visible warning signs (e.g., redness, stinging, flaking). In such cases, reduce the concentration accordingly. If even the lowest concentration causes adverse reactions, discontinue chemical exfoliation altogether.