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Electrologists, through a series of treatments, permanently remove hair from the skin by inserting a sterile needle-conductor into the hair follicle and directing electrical energy toward the hair cell. Electrologists work in beauty salons, in collaboration with dermatologists, and in private practice. Tattoo artists and permanent color technicians mark or color the skin by inserting nontoxic dyes or pigments into or under the subcutaneous portion of the skin using single-use or sterile needles to form indelible marks for figurative, decorative, cosmetic or medical purposes.
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