In chemical peel treatment, a peeling agent is applied to the skin, which remains on the skin for at least 3 to 5 minutes or as long as up to an hour. It depends on the type of peel and encourages your skin in order to shed its outer layer over a certain period of days. If you took a superficial peel treatment, then you can wear makeup after a day or two; however, if you took a medium peel treatment, then you have to wait for at least a few days, and the longest period is required in deep peel treatment as it took one or 2 weeks to use makeup products again. In the deep peel treatment, the skin remains sensitive for a long period of time, so it’s better to avoid makeup or any cosmetics on your face. The skincare professional who did your chemical peeling treatment can guide you more on post-treatment care.