Illinois Statutes Chapter 225. Professions,Occupations and Business Operations § 410/3A-1. Esthetics defined

(A) Any one or combination of the following practices, when done for cosmetic or beautifying purposes and not for the treatment of disease or of a muscular or nervous disorder, constitutes the practice of esthetics:

However, esthetics does not include the services provided by a cosmetologist or electrologist. Estheticians are prohibited from using techniques, products, and practices intended to affect the living layers of the skin. The term esthetics includes rendering advice on what is cosmetically appealing, but no person licensed under this Act shall render advice on what is appropriate medical treatment for diseases of the skin.

(B) “Esthetician” means any person who, with hands or mechanical or electrical apparatus or appliances, engages only in the use of cosmetic preparations, body treatments, body wraps, hydrotherapy, makeups, antiseptics, tonics, lotions, creams or other preparations or in the practice of massaging, cleansing, exfoliating the stratum corneum of the epidermis, stimulating, manipulating, beautifying, grooming, threading, or similar work on the face, neck, arms and hands or body in a superficial mode, and not for the treatment of medical disorders.