Cosmetology State Board Prep26 practice questions and answers 2026. Tap an option to test yourself — you'll see the correct answer and a plain-English explanation for every question. Free, no login.
Q21When performing a basic haircut, the term 'elevation' refers to:
✓ Correct answer: D. The angle at which the hair section is held away from the head before cutting
Elevation (also called projection or lifting) is the angle at which the hair is held away from the scalp during cutting; higher elevation creates more layering and graduation, while zero elevation produces a blunt, one-length effect.
Q22A cosmetologist notices a client has an itchy scalp with oval, yellowish-white nits attached to the hair shafts. The correct professional response is to:
✓ Correct answer: A. Politely decline the service and refer the client to a physician
Pediculosis capitis (head lice) is a contagious infestation; the cosmetologist must not perform the service on an infested client, must sanitize and disinfect all exposed surfaces, and should refer the client to a physician for treatment.
Q23Which of the following correctly describes the function of the hair's medulla?
✓ Correct answer: A. It is the innermost layer of the hair shaft, present in coarse or thick hair, with an unclear but non-structural role
The medulla is the innermost, central layer of the hair shaft; it is present primarily in coarse or terminal hair and absent in fine hair, and does not contribute significantly to hair strength or elasticity.
Q24During the catagen phase of the hair growth cycle, which of the following occurs?
✓ Correct answer: D. The follicle transitions and shrinks as cell production slows and the hair detaches from the papilla
Catagen is a brief transitional phase lasting 1–2 weeks, during which cell division in the hair matrix slows and then stops, the follicle shrinks, and the hair detaches from the dermal papilla to form a club hair.
Q25A client with tinea capitis should be treated with:
✓ Correct answer: B. No cosmetology service; the client must be referred to a physician for antifungal treatment
Tinea capitis is a contagious fungal infection of the scalp; cosmetologists are prohibited from treating any contagious scalp disorder and must refer affected clients to a licensed physician.
Q26When performing a blunt, one-length haircut, the cosmetologist uses a stationary guideline and cuts all subsequent sections to match it. This guideline technique is most accurately described as a:
✓ Correct answer: B. Perimeter or stationary guideline
A stationary (or perimeter) guideline remains in a fixed position and is not moved as subsequent sections are cut; it is the foundation of the one-length blunt cut and ensures uniform length throughout.
Q27A cosmetologist is about to shampoo a client who has visible open lesions and abrasions on the scalp. Which infection-control principle most directly requires the cosmetologist to decline the shampoo service?
✓ Correct answer: A. Open lesions represent a contraindication because they create a portal of entry for pathogens, elevating transmission risk for both client and cosmetologist
Open lesions and abrasions on the scalp are a contraindication to shampooing because broken skin provides a direct portal of entry for pathogens; performing the service could harm the client and expose the cosmetologist to bloodborne or other pathogens.
Q28Alopecia areata is best characterized as:
✓ Correct answer: C. A patchy, non-scarring hair loss condition believed to be an autoimmune response where the body attacks its own hair follicles
Alopecia areata is classified as an autoimmune condition in which the immune system mistakenly attacks hair follicles, producing well-defined, smooth, patchy areas of non-scarring hair loss that can occur anywhere on the scalp or body.
Q29Permanent waving solution (waving lotion) works by breaking which type of bond in the hair's cortex?
✓ Correct answer: C. Disulfide bonds
Permanent waving lotion is an alkaline reducing agent that breaks the strong disulfide (cystine) bonds in the cortex, allowing the hair to be reshaped around a rod.
Q30After the waving lotion has processed, the neutralizer is applied during a permanent wave service. What is the primary function of the neutralizer?
✓ Correct answer: D. To re-form disulfide bonds in the hair's new shape
The neutralizer is an oxidizing agent that re-forms (rebuilds) the disulfide bonds in their new configuration around the rod, locking in the curl pattern.
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