Cosmetology Test Cheat Sheet 2026

The 30 highest-yield Cosmetology Test facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which layer of the skin contains blood vessels, nerves, sweat glands, and oil glands? → Dermis
2. What type of chemical reaction produces heat as a byproduct, such as during exothermic relaxer application? → Exothermic reaction
3. Which layer of the hair shaft is responsible for giving hair its elasticity and strength? → Cortex
4. What is the consequence of submitting a fraudulent application to the state cosmetology board? → The applicant may face denial, fines, or criminal charges
5. What type of perm is recommended for clients with color-treated or previously chemically processed hair? → Acid-balanced perm (low pH perm)
6. Before recommending hair extensions, which factor is MOST important for a cosmetologist to assess? → Natural hair health and strength
7. What is the correct consistency for acrylic when picked up with the brush — known as the 'bead'? → Medium-dry with a dull surface
8. What is the recommended SPF for daily facial sun protection according to most skin care guidelines? → SPF 15 or higher
9. What is the visible part of the hair that extends above the scalp surface called? → Hair shaft
10. What is the term for the technique of removing bulk from thick hair without shortening the overall length? → Thinning
11. What is the Fitzpatrick Scale used to classify? → Skin types based on sun sensitivity and tanning response
12. An EPA-registered disinfectant must be used in a salon to clean which of the following? → Nonporous tools and implements
13. Which organization administers the National Interstate Council (NIC) cosmetology written exam used by many states? → NIC through approved testing vendors
14. What is the main active ingredient in most sodium hydroxide (lye) hair relaxers? → Sodium hydroxide
15. How long does a cosmetology apprenticeship typically need to be to qualify for licensure in states that allow this path? → 2,000 hours
16. Under most state cosmetology rules, which record must be maintained for each client who receives chemical services? → A client intake and chemical service record card
17. A client arrives with a small cut on their finger. What should the cosmetologist do before performing a service? → Cover the wound with a bandage and wear gloves
18. What is 'pterygium' in nail terminology? → Forward growth of the cuticle onto the nail plate
19. Which ingredient in nail hardeners cross-links the keratin proteins in the nail plate to strengthen it? → Formaldehyde
20. In the context of skin care services, what does the term 'emollient' mean? → A substance that softens and smooths the skin by filling spaces between skin cells
21. Which of the following best describes the 'smoothing' step in a chemical relaxer service? → Using the back of a comb or gloved fingers to straighten the hair during processing
22. The visible part of the nail that extends beyond the fingertip is called the: → Free edge
23. The buccinator muscle is located in the cheek and is primarily responsible for: → Compressing the cheeks against the teeth during chewing and whistling
24. Which of the following is an example of unprofessional conduct under cosmetology regulations? → Discriminating against clients based on race or religion
25. Which of the following is the correct way to hold scissors during a haircut to maintain safety and control? → Thumb in the smaller ring and ring finger in the larger ring
26. Which manicure technique involves buffing the nail plate to create a natural, shiny finish without polish? → Dry or natural manicure with buffing
27. Which part of the nail unit contains the nerves, lymph, and blood vessels and is responsible for producing the cells that form the nail plate? → Nail Matrix
28. Which of the following chemical services is most commonly included in a full-service cosmetology state board practical exam? → Permanent wave
29. A common usage for dibutyl phthalate is as a _______. → Plasticizer
30. What does the term 'elasticity test' evaluate before a chemical texture service? → The hair's ability to stretch and return to its original length