Peels are effective treatments against skin that is oily, rough, or pigmented. People whose skin is prone to acne or excessive oil benefit from the process that this treatment involves. The process is also used as an anti-aging procedure through the use of salicylic acid to remove dead skin cells known as keratinocytes. One must keep in mind that the area affected by treatment must settle down before a new light peel can be done, meaning that these peels can be done on a weekly basis. In contrast, deep peels require a two to six-week time period between them.