The following activities are prohibited in any full service or limited practice salon or in regard to any salon-sponsored services: The performance of services of any kind on a client who has an infectious or contagious disease that presents a hazard to others; The performance of services of any kind by a licensee or registrant who has an infectious or contagious disease that presents a hazard to clients; The performance of services of any kind upon the surface of a client's skin, scalp, or nail where the skin, scalp, or nail is inflamed or where a skin infection or eruption is present unless authorized by a physician; The removal of corns, calluses, or other growths of the skin, such as warts, by cutting; The use of electrical muscle stimulator devices purported to produce nonsurgical face or body lifts; Cosmetic tattooing; The presence of a dog, cat, bird, or any kind of animal on the salon premises with the exception of a designated service animal; The sale of any hairpieces which previously have been worn including, but not limited to wigs, toupees, wiglets, falls, and switches; The use or possession of a Credo blade or a similar razor-type implement used to cut growths on the skin; Unless an individual possesses a valid and appropriate health occupation license issued by the Maryland Department of Health: The use of lasers, microdermabrasion equipment, or any other mechanical device used to remove one or more layers of skin; The use of any product or method that causes tissue destruction or penetrates the blood fluid barrier; Chemical peels that penetrate the skin beyond the epidermis; Mechanical tissue alteration, including, but not limited to: Microdermabrasion; and Electrotherapy; Contouring or sculpting using cryotherapy, radio frequency, or liposuction; Any procedure causing ablation of the dermis or hypodermis; and Any form of skin injections.