What term refers to the services provided to a wig or hairpiece?

The term that refers to the services provided to a wig or hairpiece is "wigology." This specific term encompasses various practices related to the maintenance, styling, and enhancement of wigs and hairpieces. Wigology includes understanding the materials, types of wigs, and the appropriate techniques for care and styling, which are critical for ensuring that wigs look natural and are well-maintained.

Hairdressing generally relates to the styling and care of natural hair rather than wigs or hairpieces, and though it may include some overlap, it does not specifically address the unique needs of wigs. Esthetic services focus on skin care and beauty treatments rather than hair-related services, including wigs. Cosmetic application commonly pertains to makeup application and does not cover the services specific to wigs and hairpieces. Therefore, wigology is the most precise term for services related to wigs, making it the correct choice.