CT Cosmetology study guide
CT Cosmetology · Work through your exam, one topic at a time.
The Connecticut Cosmetology licensure examination is the assessment that the Connecticut Department of Public Health (DPH) uses in the licensing process for cosmetologists in the state, and it is aimed at candidates who have completed the required training and want to work in Connecticut salons. This page is an independent study resource and is not affiliated with, endorsed by, or produced by DPH or the State of Connecticut. Important limitation: when this page was compiled on 2026-11-04, the DPH Practitioner Licensing and Investigations cosmetology page returned a 404 "This page can't be found" error. The department's own error message explains that its website was recently updated, that many web pages have moved, and that visitors should use the search bar, explore the new Department of Public Health website, or contact the department for assistance. The CT Cosmetology study guide has 5 sections and about 1,889 words.
01Scientific Concepts and Hair Care
This domain tests the science behind services: hair structure, growth, properties, and scalp disorders. The hair shaft has three layers.
406 words, about 2 min02Hair Shaping, Styling, and Chemical Services
This domain tests haircutting, thermal and wet styling, chemical texture, and color. Haircutting depends on sectioning, distribution, elevation, and guide.
389 words, about 2 min03Nail Care and Skin Care Services
This domain tests nail and skin structure, disorders, and safe service practice. The nail plate is the hard keratin surface; the nail bed lies beneath it; the matrix produces the plate; the lunula is the visible portion of the matrix; the cuticle is dead tissue on the plate; the eponychium is the living fold at the base; the hyponychium is the seal under the free edge.
366 words, about 2 min04Salon Business, Safety, and Infection Control
This domain tests salon operations plus safety and infection control. Cleaning removes visible debris with soap and water.
366 words, about 2 min05Connecticut Laws, Regulations, and Professional Ethics
This domain tests Connecticut-specific rules and ethics. The Department of Public Health (DPH) and its examining board license individuals and salons.
362 words, about 2 min