There are a wide variety of chemical peels from very mild to very severe. The punishment needs to fit the crime. For young people, the usual issue is acne. Mild, no down time, light peels help open pores and can reduce acne activity. Individuals who have had Accutane in the prior two years do not heal well and generally are not suitable candidates for this type of treatment.
Chemical peeling is generally not fully taught in residency programs like Plastic Surgery or even Dermatology. It is generally necessary for a surgeon to do a fellowship in cosmetic or aesthetic surgery that feature a high volume of chemical peels in order for that individual to establish themselves as a master chemical peeler.