Esthetician State Board Exam (TX, CA, FL, NY) Prep –
Real Practice Questions, Answers & Detailed
Rationales (Updated 2026) | Skin Care & Facials,
Infection Control & Sanitation, Skin Disorders &
Conditions, Hair Removal Techniques, Chemical Peels
& Exfoliation, Product Chemistry, Client Consultation,
State Laws & Salon Safety Standards
Question 1: Which layer of the epidermis is responsible for the continuous
production of new skin cells through mitosis?
A. Stratum corneum
B. Stratum granulosum
C. Stratum basale
D. Stratum lucidum
CORRECT ANSWER: C. Stratum basale
Rationale: The stratum basale, also known as the basal layer, is the deepest layer of the
epidermis where keratinocytes undergo continuous cell division (mitosis) to produce
new skin cells that migrate upward through the epidermal layers. This regenerative
process is essential for skin renewal and barrier function.
Question 2: According to Texas Department of Licensing and Regulation (TDLR)
requirements, how many hours of training must an esthetician student complete
before taking the licensing exam?
A. 500 hours
B. 600 hours
C. 750 hours
D. 1000 hours
CORRECT ANSWER: C. 750 hours
Rationale: Texas requires esthetician students to complete 750 hours of instruction at a
TDLR-approved cosmetology school before becoming eligible to take both the written
and practical licensing examinations
beautylicenseguide.com
. This ensures comprehensive training in all required competencies.
Question 3: Which of the following bacteria is most commonly associated with
acne vulgaris and thrives in anaerobic environments within the pilosebaceous
unit?
A. Staphylococcus aureus
B. Streptococcus pyogenes
C. Propionibacterium acnes
D. Escherichia coli
,CORRECT ANSWER: C. Propionibacterium acnes
Rationale: Propionibacterium acnes (now reclassified as Cutibacterium acnes) is a
gram-positive, anaerobic bacterium that colonizes hair follicles and contributes to
inflammatory acne by triggering immune responses and breaking down sebum into
irritating fatty acids.
Question 4: What is the primary purpose of performing a patch test 24-48 hours
before a chemical peel or new product application?
A. To determine the client's skin type
B. To assess the client's pain tolerance
C. To identify potential allergic reactions or sensitivities
D. To measure skin hydration levels
CORRECT ANSWER: C. To identify potential allergic reactions or sensitivities
Rationale: Patch testing is a critical safety protocol that helps identify hypersensitivity
or allergic reactions to ingredients before full application, preventing adverse events
such as contact dermatitis, swelling, or anaphylaxis during professional treatments.
Question 5: In California, which state agency oversees the licensing and regulation
of estheticians?
A. Department of Consumer Affairs
B. Board of Barbering and Cosmetology
C. California Health and Safety Commission
D. State Board of Esthetics
CORRECT ANSWER: B. Board of Barbering and Cosmetology
Rationale: The California Board of Barbering and Cosmetology, under the Department
of Consumer Affairs, is responsible for licensing, regulating, and enforcing standards for
estheticians and other personal care professionals in the state
nictesting.org
.
Question 6: Which electrical modality uses a high-frequency alternating current to
produce a mild thermal effect, stimulate circulation, and have germicidal
properties?
A. Galvanic current
B. Microcurrent
C. High frequency
D. Ultrasound
CORRECT ANSWER: C. High frequency
,Rationale: High frequency devices generate a mild electrical current that produces
ozone, which has antibacterial properties. The thermal effect increases blood
circulation, promotes product absorption, and aids in healing, making it ideal for acne-
prone and congested skin.
Question 7: What is the Fitzpatrick Skin Type classification for an individual who
always burns, never tans, and has very fair skin with light eyes?
A. Type II
B. Type I
C. Type III
D. Type IV
CORRECT ANSWER: B. Type I
Rationale: Fitzpatrick Type I describes individuals with very fair skin, light blue or gray
eyes, and blonde or red hair who always burn with minimal sun exposure and never
develop a tan. This skin type has the highest risk for UV damage and skin cancer.
Question 8: According to OSHA Bloodborne Pathogens Standard, which of the
following is classified as regulated waste that requires disposal in a labeled
biohazard container?
A. Used cotton pads with foundation
B. Disposable gloves contaminated with blood
C. Paper towels used to wipe water
D. Empty product containers
CORRECT ANSWER: B. Disposable gloves contaminated with blood
Rationale: OSHA defines regulated waste as items contaminated with blood or other
potentially infectious materials (OPIM) that are caked with dried blood or capable of
releasing liquid blood when compressed. These must be disposed of in properly labeled
biohazard containers.
Question 9: Which ingredient is a beta hydroxy acid (BHA) known for its ability to
penetrate oil-filled pores and exfoliate inside the follicle?
A. Glycolic acid
B. Lactic acid
C. Salicylic acid
D. Citric acid
CORRECT ANSWER: C. Salicylic acid
Rationale: Salicylic acid is a lipid-soluble beta hydroxy acid that can penetrate sebum-
filled pores, making it highly effective for treating acne, blackheads, and oily skin by
exfoliating within the follicle and reducing inflammation.
, Question 10: In New York State, what is the minimum number of hours required to
qualify for an esthetician license?
A. 500 hours
B. 600 hours
C. 750 hours
D. 1000 hours
CORRECT ANSWER: B. 600 hours
Rationale: New York State requires completion of a 600-hour approved esthetics
program before candidates can sit for the written and practical licensing examinations
administered by the Division of Licensing Services
dos.ny.gov
.
Question 11: Which skin condition is characterized by small, white, keratin-filled
cysts that commonly appear around the eyes and cheeks?
A. Milia
B. Comedones
C. Sebaceous hyperplasia
D. Xanthelasma
CORRECT ANSWER: A. Milia
Rationale: Milia are tiny, superficial cysts formed when keratin becomes trapped
beneath the skin surface. They are not acne and should never be squeezed;
professional extraction requires sterile technique and proper tools to avoid scarring.
Question 12: What is the correct sequence for donning personal protective
equipment (PPE) before performing a facial extraction service?
A. Gloves, mask, eyewear, gown
B. Gown, mask, eyewear, gloves
C. Mask, gown, eyewear, gloves
D. Eyewear, gloves, mask, gown
CORRECT ANSWER: B. Gown, mask, eyewear, gloves
Rationale: PPE should be donned in an order that prevents contamination: gown first to
protect clothing, then mask and eyewear to protect mucous membranes, and gloves
last to maintain sterility and avoid touching contaminated surfaces after gloving.
Question 13: Which layer of the skin contains blood vessels, nerves, hair follicles,
and sebaceous glands?
A. Epidermis
B. Dermis
Real Practice Questions, Answers & Detailed
Rationales (Updated 2026) | Skin Care & Facials,
Infection Control & Sanitation, Skin Disorders &
Conditions, Hair Removal Techniques, Chemical Peels
& Exfoliation, Product Chemistry, Client Consultation,
State Laws & Salon Safety Standards
Question 1: Which layer of the epidermis is responsible for the continuous
production of new skin cells through mitosis?
A. Stratum corneum
B. Stratum granulosum
C. Stratum basale
D. Stratum lucidum
CORRECT ANSWER: C. Stratum basale
Rationale: The stratum basale, also known as the basal layer, is the deepest layer of the
epidermis where keratinocytes undergo continuous cell division (mitosis) to produce
new skin cells that migrate upward through the epidermal layers. This regenerative
process is essential for skin renewal and barrier function.
Question 2: According to Texas Department of Licensing and Regulation (TDLR)
requirements, how many hours of training must an esthetician student complete
before taking the licensing exam?
A. 500 hours
B. 600 hours
C. 750 hours
D. 1000 hours
CORRECT ANSWER: C. 750 hours
Rationale: Texas requires esthetician students to complete 750 hours of instruction at a
TDLR-approved cosmetology school before becoming eligible to take both the written
and practical licensing examinations
beautylicenseguide.com
. This ensures comprehensive training in all required competencies.
Question 3: Which of the following bacteria is most commonly associated with
acne vulgaris and thrives in anaerobic environments within the pilosebaceous
unit?
A. Staphylococcus aureus
B. Streptococcus pyogenes
C. Propionibacterium acnes
D. Escherichia coli
,CORRECT ANSWER: C. Propionibacterium acnes
Rationale: Propionibacterium acnes (now reclassified as Cutibacterium acnes) is a
gram-positive, anaerobic bacterium that colonizes hair follicles and contributes to
inflammatory acne by triggering immune responses and breaking down sebum into
irritating fatty acids.
Question 4: What is the primary purpose of performing a patch test 24-48 hours
before a chemical peel or new product application?
A. To determine the client's skin type
B. To assess the client's pain tolerance
C. To identify potential allergic reactions or sensitivities
D. To measure skin hydration levels
CORRECT ANSWER: C. To identify potential allergic reactions or sensitivities
Rationale: Patch testing is a critical safety protocol that helps identify hypersensitivity
or allergic reactions to ingredients before full application, preventing adverse events
such as contact dermatitis, swelling, or anaphylaxis during professional treatments.
Question 5: In California, which state agency oversees the licensing and regulation
of estheticians?
A. Department of Consumer Affairs
B. Board of Barbering and Cosmetology
C. California Health and Safety Commission
D. State Board of Esthetics
CORRECT ANSWER: B. Board of Barbering and Cosmetology
Rationale: The California Board of Barbering and Cosmetology, under the Department
of Consumer Affairs, is responsible for licensing, regulating, and enforcing standards for
estheticians and other personal care professionals in the state
nictesting.org
.
Question 6: Which electrical modality uses a high-frequency alternating current to
produce a mild thermal effect, stimulate circulation, and have germicidal
properties?
A. Galvanic current
B. Microcurrent
C. High frequency
D. Ultrasound
CORRECT ANSWER: C. High frequency
,Rationale: High frequency devices generate a mild electrical current that produces
ozone, which has antibacterial properties. The thermal effect increases blood
circulation, promotes product absorption, and aids in healing, making it ideal for acne-
prone and congested skin.
Question 7: What is the Fitzpatrick Skin Type classification for an individual who
always burns, never tans, and has very fair skin with light eyes?
A. Type II
B. Type I
C. Type III
D. Type IV
CORRECT ANSWER: B. Type I
Rationale: Fitzpatrick Type I describes individuals with very fair skin, light blue or gray
eyes, and blonde or red hair who always burn with minimal sun exposure and never
develop a tan. This skin type has the highest risk for UV damage and skin cancer.
Question 8: According to OSHA Bloodborne Pathogens Standard, which of the
following is classified as regulated waste that requires disposal in a labeled
biohazard container?
A. Used cotton pads with foundation
B. Disposable gloves contaminated with blood
C. Paper towels used to wipe water
D. Empty product containers
CORRECT ANSWER: B. Disposable gloves contaminated with blood
Rationale: OSHA defines regulated waste as items contaminated with blood or other
potentially infectious materials (OPIM) that are caked with dried blood or capable of
releasing liquid blood when compressed. These must be disposed of in properly labeled
biohazard containers.
Question 9: Which ingredient is a beta hydroxy acid (BHA) known for its ability to
penetrate oil-filled pores and exfoliate inside the follicle?
A. Glycolic acid
B. Lactic acid
C. Salicylic acid
D. Citric acid
CORRECT ANSWER: C. Salicylic acid
Rationale: Salicylic acid is a lipid-soluble beta hydroxy acid that can penetrate sebum-
filled pores, making it highly effective for treating acne, blackheads, and oily skin by
exfoliating within the follicle and reducing inflammation.
, Question 10: In New York State, what is the minimum number of hours required to
qualify for an esthetician license?
A. 500 hours
B. 600 hours
C. 750 hours
D. 1000 hours
CORRECT ANSWER: B. 600 hours
Rationale: New York State requires completion of a 600-hour approved esthetics
program before candidates can sit for the written and practical licensing examinations
administered by the Division of Licensing Services
dos.ny.gov
.
Question 11: Which skin condition is characterized by small, white, keratin-filled
cysts that commonly appear around the eyes and cheeks?
A. Milia
B. Comedones
C. Sebaceous hyperplasia
D. Xanthelasma
CORRECT ANSWER: A. Milia
Rationale: Milia are tiny, superficial cysts formed when keratin becomes trapped
beneath the skin surface. They are not acne and should never be squeezed;
professional extraction requires sterile technique and proper tools to avoid scarring.
Question 12: What is the correct sequence for donning personal protective
equipment (PPE) before performing a facial extraction service?
A. Gloves, mask, eyewear, gown
B. Gown, mask, eyewear, gloves
C. Mask, gown, eyewear, gloves
D. Eyewear, gloves, mask, gown
CORRECT ANSWER: B. Gown, mask, eyewear, gloves
Rationale: PPE should be donned in an order that prevents contamination: gown first to
protect clothing, then mask and eyewear to protect mucous membranes, and gloves
last to maintain sterility and avoid touching contaminated surfaces after gloving.
Question 13: Which layer of the skin contains blood vessels, nerves, hair follicles,
and sebaceous glands?
A. Epidermis
B. Dermis
