TEXAS COSMETOLOGY STATE BOARD EXAM
PREP 2026 UPDATED | Real Practice Questions,
Verified Answers & Detailed Rationales | INSTANT
PDF DOWNLOAD
• 200 exam-style questions modeled on the Texas Cosmetology State Board format,
covering every tested domain with verified answers and detailed EXPERT
RATIONALE to reinforce understanding.
• Study by attempting each question first before checking the highlighted correct
answer and EXPERT RATIONALE — this active recall method boosts retention and
prepares you for the real exam.
1. What is the outermost layer of the skin called?
A. Dermis
B. Hypodermis
C. Stratum basale
D. Epidermis
Correct Answer: D. Epidermis
EXPERT RATIONALE: The epidermis is the outermost layer of the skin. It serves
as the body's first line of defense against environmental elements. The dermis lies
beneath it, and the hypodermis is the deepest layer.
2. Which layer of the skin contains collagen and elastin fibers?
A. Epidermis
B. Stratum corneum
C. Hypodermis
D. Dermis
E. Stratum granulosum
Correct Answer: D. Dermis
, EXPERT RATIONALE: The dermis is the second layer of the skin and contains
collagen and elastin fibers that give skin its strength and elasticity. It also houses
hair follicles, sweat glands, and nerve endings.
3. What type of bacteria causes staph infections commonly seen in salons?
A. Bacilli
B. Diplococci
C. Streptococci
D. Staphylococci
E. Spirilla
Correct Answer: D. Staphylococci
EXPERT RATIONALE: Staphylococci are spherical bacteria that appear in grape-
like clusters. They are commonly responsible for skin infections, including those
that can occur in salon environments through unsanitary tools or practices.
4. Which of the following is a fungal infection of the nail?
A. Paronychia
B. Onychorrhexis
C. Leuconychia
D. Onychomycosis
E. Pterygium
Correct Answer: D. Onychomycosis
EXPERT RATIONALE: Onychomycosis is a fungal infection of the nail plate that
causes discoloration, thickening, and crumbling of the nail. Cosmetologists must
recognize this condition and refer clients to a physician rather than performing
services.
,5. What is the chemical process that occurs when hair is permanently waved?
A. Oxidation only
B. Melanin reduction
C. Protein denaturation
D. Reduction followed by oxidation
E. Hydrolysis
Correct Answer: D. Reduction followed by oxidation
EXPERT RATIONALE: Permanent waving involves two chemical steps: reduction
(breaking disulfide bonds using a waving lotion) and oxidation (reforming those
bonds in a new shape using a neutralizer). Both steps are essential to the process.
6. What does the term "pH" measure?
A. The temperature of a solution
B. The viscosity of a solution
C. The protein content of a solution
D. The acidity or alkalinity of a solution
E. The electrical charge of a solution
Correct Answer: D. The acidity or alkalinity of a solution
EXPERT RATIONALE: pH stands for potential hydrogen and measures how
acidic or alkaline a substance is on a scale of 0 to 14. A pH of 7 is neutral, below 7 is
acidic, and above 7 is alkaline.
7. What is the normal pH range of healthy hair?
A. 1.0–2.5
, B. 7.5–9.0
C. 5.5–7.0
D. 4.5–5.5
E. 3.0–4.0
Correct Answer: D. 4.5–5.5
EXPERT RATIONALE: Healthy hair has a slightly acidic pH ranging from 4.5 to
5.5. This pH level helps to keep the cuticle layer closed and the hair smooth, shiny,
and strong.
8. Which section of the Texas Occupations Code governs cosmetology
licensing?
A. Chapter 401
B. Chapter 203
C. Chapter 1602
D. Chapter 1603
E. Chapter 455
Correct Answer: D. Chapter 1603
EXPERT RATIONALE: Chapter 1603 of the Texas Occupations Code governs the
regulation of cosmetology in Texas, outlining licensing requirements, sanitation
standards, and enforcement procedures for cosmetologists and salons.
9. Which of the following is the regulatory body that oversees cosmetology in
Texas?
A. Texas Medical Board
B. Texas Department of Health
C. Texas State Board of Education
PREP 2026 UPDATED | Real Practice Questions,
Verified Answers & Detailed Rationales | INSTANT
PDF DOWNLOAD
• 200 exam-style questions modeled on the Texas Cosmetology State Board format,
covering every tested domain with verified answers and detailed EXPERT
RATIONALE to reinforce understanding.
• Study by attempting each question first before checking the highlighted correct
answer and EXPERT RATIONALE — this active recall method boosts retention and
prepares you for the real exam.
1. What is the outermost layer of the skin called?
A. Dermis
B. Hypodermis
C. Stratum basale
D. Epidermis
Correct Answer: D. Epidermis
EXPERT RATIONALE: The epidermis is the outermost layer of the skin. It serves
as the body's first line of defense against environmental elements. The dermis lies
beneath it, and the hypodermis is the deepest layer.
2. Which layer of the skin contains collagen and elastin fibers?
A. Epidermis
B. Stratum corneum
C. Hypodermis
D. Dermis
E. Stratum granulosum
Correct Answer: D. Dermis
, EXPERT RATIONALE: The dermis is the second layer of the skin and contains
collagen and elastin fibers that give skin its strength and elasticity. It also houses
hair follicles, sweat glands, and nerve endings.
3. What type of bacteria causes staph infections commonly seen in salons?
A. Bacilli
B. Diplococci
C. Streptococci
D. Staphylococci
E. Spirilla
Correct Answer: D. Staphylococci
EXPERT RATIONALE: Staphylococci are spherical bacteria that appear in grape-
like clusters. They are commonly responsible for skin infections, including those
that can occur in salon environments through unsanitary tools or practices.
4. Which of the following is a fungal infection of the nail?
A. Paronychia
B. Onychorrhexis
C. Leuconychia
D. Onychomycosis
E. Pterygium
Correct Answer: D. Onychomycosis
EXPERT RATIONALE: Onychomycosis is a fungal infection of the nail plate that
causes discoloration, thickening, and crumbling of the nail. Cosmetologists must
recognize this condition and refer clients to a physician rather than performing
services.
,5. What is the chemical process that occurs when hair is permanently waved?
A. Oxidation only
B. Melanin reduction
C. Protein denaturation
D. Reduction followed by oxidation
E. Hydrolysis
Correct Answer: D. Reduction followed by oxidation
EXPERT RATIONALE: Permanent waving involves two chemical steps: reduction
(breaking disulfide bonds using a waving lotion) and oxidation (reforming those
bonds in a new shape using a neutralizer). Both steps are essential to the process.
6. What does the term "pH" measure?
A. The temperature of a solution
B. The viscosity of a solution
C. The protein content of a solution
D. The acidity or alkalinity of a solution
E. The electrical charge of a solution
Correct Answer: D. The acidity or alkalinity of a solution
EXPERT RATIONALE: pH stands for potential hydrogen and measures how
acidic or alkaline a substance is on a scale of 0 to 14. A pH of 7 is neutral, below 7 is
acidic, and above 7 is alkaline.
7. What is the normal pH range of healthy hair?
A. 1.0–2.5
, B. 7.5–9.0
C. 5.5–7.0
D. 4.5–5.5
E. 3.0–4.0
Correct Answer: D. 4.5–5.5
EXPERT RATIONALE: Healthy hair has a slightly acidic pH ranging from 4.5 to
5.5. This pH level helps to keep the cuticle layer closed and the hair smooth, shiny,
and strong.
8. Which section of the Texas Occupations Code governs cosmetology
licensing?
A. Chapter 401
B. Chapter 203
C. Chapter 1602
D. Chapter 1603
E. Chapter 455
Correct Answer: D. Chapter 1603
EXPERT RATIONALE: Chapter 1603 of the Texas Occupations Code governs the
regulation of cosmetology in Texas, outlining licensing requirements, sanitation
standards, and enforcement procedures for cosmetologists and salons.
9. Which of the following is the regulatory body that oversees cosmetology in
Texas?
A. Texas Medical Board
B. Texas Department of Health
C. Texas State Board of Education
