TEXAS COSMETOLOGY STATE BOARD EXAM
2026/2027 – PRACTICE QUESTIONS & ANSWERS |
200+ VERIFIED Q&A WITH DETAILED
RATIONALES | HAIR, SKIN & CHEMICAL SERVICES
PREP
• 200 practice questions modeled after the Texas Cosmetology State Board Exam
(2026/2027), covering all tested domains including hair, skin, nails, chemical
services, sanitation, anatomy, electricity, and Texas state law.
• Study tip: Work through each question independently before checking the correct
answer and EXPERT RATIONALE — this active recall method strengthens retention
far better than passive reading.
1. What is the most important reason for a cosmetologist to wash their
hands?
A. To remove nail polish
B. To soften the skin
C. To prevent the spread of infection and disease
D. To prepare for a chemical service
E. To remove hair product buildup
C. To prevent the spread of infection and disease
EXPERT RATIONALE: Hand washing is the single most effective way to prevent cross-
contamination and the spread of pathogens between clients and cosmetologists.
2. Which of the following is classified as a bactericide?
A. Water
B. Soap
C. Bleach solution
D. A product that destroys bacteria
,E. A product that slows bacterial growth
D. A product that destroys bacteria
EXPERT RATIONALE: A bactericide is any chemical agent capable of killing bacteria. It
does not merely slow growth — it destroys the organism.
3. What does the term "sanitation" mean in a cosmetology setting?
A. Killing all living organisms on a surface
B. Reducing the number of pathogens to a safe level
C. Sterilizing all tools with heat
D. Disinfecting only metal implements
E. Removing all chemical residue from surfaces
B. Reducing the number of pathogens to a safe level
EXPERT RATIONALE: Sanitation lowers the number of microorganisms to a safe public
health level but does not eliminate all organisms — that is sterilization.
4. Which level of decontamination is required for tools that come into contact
with blood or broken skin?
A. Sanitation
B. Rinsing with warm water
C. Sterilization
D. Simple wiping with a dry cloth
E. Immersion in soapy water
C. Sterilization
,EXPERT RATIONALE: When tools contact blood or broken skin, sterilization — the
complete destruction of all microbial life — is required to prevent transmission of
bloodborne pathogens.
5. In Texas, who regulates the cosmetology industry?
A. The Texas Medical Board
B. The Texas Department of Licensing and Regulation (TDLR)
C. The Texas Health Department
D. The Federal Cosmetology Council
E. The Texas Board of Education
B. The Texas Department of Licensing and Regulation (TDLR)
EXPERT RATIONALE: TDLR is the state agency responsible for licensing, inspecting, and
regulating cosmetology establishments and professionals in Texas.
6. What is the correct way to store disinfected implements?
A. Loosely in an open drawer
B. In a sealed plastic bag on the counter
C. In a clean, covered, dry container or cabinet
D. Submerged in water
E. On a paper towel near the sink
C. In a clean, covered, dry container or cabinet
EXPERT RATIONALE: Disinfected implements must be stored in a clean, covered
container to prevent recontamination before use on a client.
, 7. Which of the following is NOT a characteristic of a viable disinfectant used
in salons?
A. It should kill pathogens within a reasonable contact time
B. It should be used according to manufacturer instructions
C. It should change color when expired
D. It should be an EPA-registered product
E. It should be mixed at the correct dilution
C. It should change color when expired
EXPERT RATIONALE: There is no regulatory requirement that disinfectants change color
when expired. All other options are standard requirements for proper disinfectant use in
licensed establishments.
8. What is the pH of the hair's natural acid mantle?
A. 7.0 – 8.0
B. 9.0 – 10.0
C. 4.5 – 5.5
D. 2.0 – 3.0
E. 6.5 – 7.5
C. 4.5 – 5.5
EXPERT RATIONALE: The hair and scalp have a naturally slightly acidic pH of 4.5–5.5,
which helps protect against bacteria and keeps the cuticle closed and smooth.
9. The outermost layer of the hair shaft is called the:
A. Cortex
B. Medulla
2026/2027 – PRACTICE QUESTIONS & ANSWERS |
200+ VERIFIED Q&A WITH DETAILED
RATIONALES | HAIR, SKIN & CHEMICAL SERVICES
PREP
• 200 practice questions modeled after the Texas Cosmetology State Board Exam
(2026/2027), covering all tested domains including hair, skin, nails, chemical
services, sanitation, anatomy, electricity, and Texas state law.
• Study tip: Work through each question independently before checking the correct
answer and EXPERT RATIONALE — this active recall method strengthens retention
far better than passive reading.
1. What is the most important reason for a cosmetologist to wash their
hands?
A. To remove nail polish
B. To soften the skin
C. To prevent the spread of infection and disease
D. To prepare for a chemical service
E. To remove hair product buildup
C. To prevent the spread of infection and disease
EXPERT RATIONALE: Hand washing is the single most effective way to prevent cross-
contamination and the spread of pathogens between clients and cosmetologists.
2. Which of the following is classified as a bactericide?
A. Water
B. Soap
C. Bleach solution
D. A product that destroys bacteria
,E. A product that slows bacterial growth
D. A product that destroys bacteria
EXPERT RATIONALE: A bactericide is any chemical agent capable of killing bacteria. It
does not merely slow growth — it destroys the organism.
3. What does the term "sanitation" mean in a cosmetology setting?
A. Killing all living organisms on a surface
B. Reducing the number of pathogens to a safe level
C. Sterilizing all tools with heat
D. Disinfecting only metal implements
E. Removing all chemical residue from surfaces
B. Reducing the number of pathogens to a safe level
EXPERT RATIONALE: Sanitation lowers the number of microorganisms to a safe public
health level but does not eliminate all organisms — that is sterilization.
4. Which level of decontamination is required for tools that come into contact
with blood or broken skin?
A. Sanitation
B. Rinsing with warm water
C. Sterilization
D. Simple wiping with a dry cloth
E. Immersion in soapy water
C. Sterilization
,EXPERT RATIONALE: When tools contact blood or broken skin, sterilization — the
complete destruction of all microbial life — is required to prevent transmission of
bloodborne pathogens.
5. In Texas, who regulates the cosmetology industry?
A. The Texas Medical Board
B. The Texas Department of Licensing and Regulation (TDLR)
C. The Texas Health Department
D. The Federal Cosmetology Council
E. The Texas Board of Education
B. The Texas Department of Licensing and Regulation (TDLR)
EXPERT RATIONALE: TDLR is the state agency responsible for licensing, inspecting, and
regulating cosmetology establishments and professionals in Texas.
6. What is the correct way to store disinfected implements?
A. Loosely in an open drawer
B. In a sealed plastic bag on the counter
C. In a clean, covered, dry container or cabinet
D. Submerged in water
E. On a paper towel near the sink
C. In a clean, covered, dry container or cabinet
EXPERT RATIONALE: Disinfected implements must be stored in a clean, covered
container to prevent recontamination before use on a client.
, 7. Which of the following is NOT a characteristic of a viable disinfectant used
in salons?
A. It should kill pathogens within a reasonable contact time
B. It should be used according to manufacturer instructions
C. It should change color when expired
D. It should be an EPA-registered product
E. It should be mixed at the correct dilution
C. It should change color when expired
EXPERT RATIONALE: There is no regulatory requirement that disinfectants change color
when expired. All other options are standard requirements for proper disinfectant use in
licensed establishments.
8. What is the pH of the hair's natural acid mantle?
A. 7.0 – 8.0
B. 9.0 – 10.0
C. 4.5 – 5.5
D. 2.0 – 3.0
E. 6.5 – 7.5
C. 4.5 – 5.5
EXPERT RATIONALE: The hair and scalp have a naturally slightly acidic pH of 4.5–5.5,
which helps protect against bacteria and keeps the cuticle closed and smooth.
9. The outermost layer of the hair shaft is called the:
A. Cortex
B. Medulla
