Chemical peels, used for several decades for this type of treatment, are just a series of combinations of acids and some other compound with proven effectiveness for some specific types of injuries. Applied to the skin, it produces a more or less profound controlled burn that eliminates the skin lesion in a radical way (in a single session) or successive sessions.
Over the decades, the effectiveness of facial chemical peels has been improving, as has the time during which patients have to interrupt their daily lives due to the effects of these peels. Today, except for the most aggressive peels (for major epidermal lesions), patients can continue their normal daily lives on the same day.