A chemical peel involves the application of toxic chemical solutions to the skin in a controlled manner, producing controlled tissue death. The desired depth of the wound is dependent upon the condition to be treated. After the peel, the skin regenerates. The damaged skin likely regenerates through the growth of cells from deeper layers of the epidermis or from undamaged hair follicles.
Chemical peels can improve the skin’s appearance. In this treatment, a chemical solution is applied to the skin, which makes it “blister” and eventually peel off. The new skin is generally smoother and less wrinkled than the old skin.
Usually, fair-skinned and light-haired patients are better candidates for chemical peels. If you have darker skin, you may also have good results, depending upon the type of problem being treated. But you also may be more likely to have an uneven skin tone after the procedure.
What are the different types of chemical peels?
Chemical peels are broadly defined by the depth of damage in the skin that they produce. They are categorized as superficial, medium, and deep. Superficial peels do not damage skin below the epidermis, the most superficial skin layer. Medium peels may reach to the superficial layer of the dermis, the deeper layer of the skin. Deep peels usually reach the deeper layers of the dermis. The depth of damage depends on the nature and concentration of the chemicals in the peeling solution and the length of time they are permitted to interact with the skin. Popular chemicals in peeling solutions include retinoids, alpha-hydroxy acids (lactic acid and glycolic acid), beta-hydroxy acids (salicylic acid), trichloroacetic acid, and phenol (carbolic acid). Jessner’s solution, a combination of resorcinol (14 g), salicylic acid (14 g), and lactic acid (85%) in ethanol (95%), is also an excellent peeling agent.
What are the benefits of chemical peels?
If performed properly in appropriate patients, the appearance of the treated skin will have a more youthful texture with a uniform coloration that will blend with their untreated skin.
As a general rule, so called over-the-counter peels do not damage the skin and therefore cannot produce the same sort of results that a peel performed by a physician is likely to achieve. On the other hand, they are safe products and are unlikely to produce any skin damage. The so-called “microdermabrasion” is similarly non-invasive.
What are risks, side effects, and dangers of chemical peels?
The risks, side effects, and complications of chemical peels include scarring, infection, reactivation of herpes simplex infections, and a substantial contrast in coloration of the treated skin. All patients will have a recuperation period, the length of which depends upon the depth of the peel. Deep peels can result in substantial periods of healing on the order of weeks. Deep peels usually require extensive local anesthesia, conscious sedation, and occasionally common anesthesia, which carries its own risks.