Esthetician State Board Exam (TX, CA, FL, NY) Prep – Real Practice
Questions, Answers & Detailed Rationales (Updated 2026) | Facial
Treatments & Skin Analysis, Infection Control & Sanitation, Skin
Disorders & Conditions, Hair Removal & Waxing Techniques, Chemical
Peels & Exfoliation, Product Chemistry, Client Consultation, State Laws,
Spa & Salon Safety Standards
Question 1: Which layer of the epidermis is responsible for the continuous
production of new keratinocytes?
A. Stratum corneum
B. Stratum lucidum
C. Stratum germinativum
D. Stratum granulosum
CORRECT ANSWER: C. Stratum germinativum
Rationale: The stratum germinativum, also known as the stratum basale, is the deepest
layer of the epidermis where mitotic activity occurs. This layer continuously produces
new keratinocytes that migrate upward through the epidermal layers, eventually forming
the protective outer barrier of the skin.
Question 2: In the state of California, what is the minimum number of hours
required to obtain an esthetician license?
A. 300 hours
B. 450 hours
C. 600 hours
D. 750 hours
CORRECT ANSWER: C. 600 hours
Rationale: California requires esthetician applicants to complete a minimum of 600
hours of training at a Board-approved cosmetology or esthetics school before being
eligible to take the state licensing examination. This requirement is specified in the
California Board of Barbering and Cosmetology regulations.
Question 3: Which of the following bacteria is commonly associated with acne
vulgaris and thrives in anaerobic environments within the pilosebaceous unit?
A. Staphylococcus aureus
B. Propionibacterium acnes
C. Streptococcus pyogenes
D. Escherichia coli
CORRECT ANSWER: B. Propionibacterium acnes
Rationale: Propionibacterium acnes (now reclassified as Cutibacterium acnes) is a
gram-positive, anaerobic bacterium that colonizes hair follicles and sebaceous glands.
,It plays a significant role in the inflammatory process of acne vulgaris by breaking down
sebum into irritating fatty acids and triggering immune responses.
Question 4: When performing a chemical peel using glycolic acid, which factor
MOST significantly influences the depth of penetration?
A. The client's skin tone
B. The pH level of the solution
C. The temperature of the treatment room
D. The brand of the product used
CORRECT ANSWER: B. The pH level of the solution
Rationale: The pH level of an alpha hydroxy acid (AHA) solution, such as glycolic acid,
directly affects its ionization state and ability to penetrate the skin. Lower pH values
increase the concentration of free acid molecules, allowing for deeper penetration and
more aggressive exfoliation. Estheticians must carefully monitor pH to ensure safe and
effective treatment outcomes.
Question 5: According to Texas state regulations, which of the following procedures
is an esthetician NOT permitted to perform?
A. Manual extractions of comedones
B. Application of superficial chemical peels
C. Injection of dermal fillers
D. Microdermabrasion treatments
CORRECT ANSWER: C. Injection of dermal fillers
Rationale: In Texas, estheticians are prohibited from performing any procedure that
penetrates the dermis or involves injections. Injection of dermal fillers is considered a
medical procedure that must be performed by a licensed physician, nurse practitioner,
or physician assistant under appropriate supervision, as outlined in the Texas
Department of Licensing and Regulation rules.
Question 6: Which type of melanin is responsible for producing red and yellow
pigments in the skin and hair?
A. Eumelanin
B. Pheomelanin
C. Neuromelanin
D. Allomelanin
CORRECT ANSWER: B. Pheomelanin
Rationale: Pheomelanin is a type of melanin pigment that produces red, orange, and
yellow hues in skin, hair, and eyes. Individuals with higher concentrations of
pheomelanin typically have fair skin, red or blonde hair, and increased sensitivity to UV
radiation. Eumelanin, in contrast, produces brown and black pigments.
,Question 7: During a facial consultation, a client discloses they are currently taking
isotretinoin (Accutane). What is the MOST appropriate action for the esthetician?
A. Proceed with gentle exfoliation treatments
B. Avoid all exfoliating procedures and refer to a dermatologist
C. Perform a deep-cleansing facial with extractions
D. Apply a high-concentration glycolic acid peel
CORRECT ANSWER: B. Avoid all exfoliating procedures and refer to a dermatologist
Rationale: Isotretinoin significantly thins the epidermis and impairs wound healing,
making the skin extremely fragile and prone to scarring. Most state boards and
professional guidelines contraindicate waxing, chemical peels, microdermabrasion,
and aggressive extractions during treatment and for 6-12 months after discontinuation.
Referring the client to their dermatologist ensures safe, coordinated care.
Question 8: Which of the following is a PRIMARY function of sebum produced by the
sebaceous glands?
A. Regulation of body temperature
B. Lubrication and waterproofing of skin and hair
C. Production of vitamin D
D. Sensory perception
CORRECT ANSWER: B. Lubrication and waterproofing of skin and hair
Rationale: Sebum is an oily, waxy substance secreted by sebaceous glands that
lubricates the skin and hair, preventing dryness and providing a protective barrier
against moisture loss and microbial invasion. While sebum plays a role in skin health,
excessive production can contribute to acne development.
Question 9: In Florida, how often must an esthetician renew their professional
license?
A. Every year
B. Every two years
C. Every three years
D. Every four years
CORRECT ANSWER: B. Every two years
Rationale: Florida esthetician licenses must be renewed biennially (every two years)
through the Florida Board of Cosmetology. Licensees are required to complete
continuing education hours and pay renewal fees to maintain active status. Failure to
renew results in license expiration and inability to practice legally.
Question 10: Which skin type is characterized by enlarged pores, excess sebum
production, and a shiny appearance, particularly in the T-zone?
, A. Normal
B. Dry
C. Oily
D. Combination
CORRECT ANSWER: C. Oily
Rationale: Oily skin results from overactive sebaceous glands that produce excess
sebum, leading to enlarged pores, a glossy or shiny complexion, and increased
susceptibility to comedones and acne. Proper skincare for oily skin focuses on gentle
cleansing, oil-free products, and non-comedogenic formulations.
Question 11: What is the primary purpose of using a disinfectant on implements in
an esthetics practice?
A. To remove visible debris from tools
B. To destroy or inactivate pathogenic microorganisms
C. To polish metal instruments
D. To extend the lifespan of equipment
CORRECT ANSWER: B. To destroy or inactivate pathogenic microorganisms
Rationale: Disinfectants are chemical agents used to eliminate or inactivate disease-
causing microorganisms on non-porous surfaces and implements. Unlike sanitizers or
cleaners, EPA-registered hospital-grade disinfectants are required in professional
settings to meet state board infection control standards and prevent cross-
contamination.
Question 12: Which of the following ingredients is classified as a humectant and
functions by attracting water to the stratum corneum?
A. Mineral oil
B. Glycerin
C. Beeswax
D. Dimethicone
CORRECT ANSWER: B. Glycerin
Rationale: Glycerin is a humectant that draws moisture from the environment and
deeper skin layers to hydrate the stratum corneum. Humectants are essential in
moisturizers for improving skin hydration and barrier function. Mineral oil and
dimethicone are occlusives, while beeswax is an emollient and thickening agent.
Question 13: When waxing the upper lip, in which direction should the wax be
applied relative to hair growth?
A. Against the direction of hair growth
B. In the direction of hair growth
C. Perpendicular to hair growth
D. Direction does not matter
Questions, Answers & Detailed Rationales (Updated 2026) | Facial
Treatments & Skin Analysis, Infection Control & Sanitation, Skin
Disorders & Conditions, Hair Removal & Waxing Techniques, Chemical
Peels & Exfoliation, Product Chemistry, Client Consultation, State Laws,
Spa & Salon Safety Standards
Question 1: Which layer of the epidermis is responsible for the continuous
production of new keratinocytes?
A. Stratum corneum
B. Stratum lucidum
C. Stratum germinativum
D. Stratum granulosum
CORRECT ANSWER: C. Stratum germinativum
Rationale: The stratum germinativum, also known as the stratum basale, is the deepest
layer of the epidermis where mitotic activity occurs. This layer continuously produces
new keratinocytes that migrate upward through the epidermal layers, eventually forming
the protective outer barrier of the skin.
Question 2: In the state of California, what is the minimum number of hours
required to obtain an esthetician license?
A. 300 hours
B. 450 hours
C. 600 hours
D. 750 hours
CORRECT ANSWER: C. 600 hours
Rationale: California requires esthetician applicants to complete a minimum of 600
hours of training at a Board-approved cosmetology or esthetics school before being
eligible to take the state licensing examination. This requirement is specified in the
California Board of Barbering and Cosmetology regulations.
Question 3: Which of the following bacteria is commonly associated with acne
vulgaris and thrives in anaerobic environments within the pilosebaceous unit?
A. Staphylococcus aureus
B. Propionibacterium acnes
C. Streptococcus pyogenes
D. Escherichia coli
CORRECT ANSWER: B. Propionibacterium acnes
Rationale: Propionibacterium acnes (now reclassified as Cutibacterium acnes) is a
gram-positive, anaerobic bacterium that colonizes hair follicles and sebaceous glands.
,It plays a significant role in the inflammatory process of acne vulgaris by breaking down
sebum into irritating fatty acids and triggering immune responses.
Question 4: When performing a chemical peel using glycolic acid, which factor
MOST significantly influences the depth of penetration?
A. The client's skin tone
B. The pH level of the solution
C. The temperature of the treatment room
D. The brand of the product used
CORRECT ANSWER: B. The pH level of the solution
Rationale: The pH level of an alpha hydroxy acid (AHA) solution, such as glycolic acid,
directly affects its ionization state and ability to penetrate the skin. Lower pH values
increase the concentration of free acid molecules, allowing for deeper penetration and
more aggressive exfoliation. Estheticians must carefully monitor pH to ensure safe and
effective treatment outcomes.
Question 5: According to Texas state regulations, which of the following procedures
is an esthetician NOT permitted to perform?
A. Manual extractions of comedones
B. Application of superficial chemical peels
C. Injection of dermal fillers
D. Microdermabrasion treatments
CORRECT ANSWER: C. Injection of dermal fillers
Rationale: In Texas, estheticians are prohibited from performing any procedure that
penetrates the dermis or involves injections. Injection of dermal fillers is considered a
medical procedure that must be performed by a licensed physician, nurse practitioner,
or physician assistant under appropriate supervision, as outlined in the Texas
Department of Licensing and Regulation rules.
Question 6: Which type of melanin is responsible for producing red and yellow
pigments in the skin and hair?
A. Eumelanin
B. Pheomelanin
C. Neuromelanin
D. Allomelanin
CORRECT ANSWER: B. Pheomelanin
Rationale: Pheomelanin is a type of melanin pigment that produces red, orange, and
yellow hues in skin, hair, and eyes. Individuals with higher concentrations of
pheomelanin typically have fair skin, red or blonde hair, and increased sensitivity to UV
radiation. Eumelanin, in contrast, produces brown and black pigments.
,Question 7: During a facial consultation, a client discloses they are currently taking
isotretinoin (Accutane). What is the MOST appropriate action for the esthetician?
A. Proceed with gentle exfoliation treatments
B. Avoid all exfoliating procedures and refer to a dermatologist
C. Perform a deep-cleansing facial with extractions
D. Apply a high-concentration glycolic acid peel
CORRECT ANSWER: B. Avoid all exfoliating procedures and refer to a dermatologist
Rationale: Isotretinoin significantly thins the epidermis and impairs wound healing,
making the skin extremely fragile and prone to scarring. Most state boards and
professional guidelines contraindicate waxing, chemical peels, microdermabrasion,
and aggressive extractions during treatment and for 6-12 months after discontinuation.
Referring the client to their dermatologist ensures safe, coordinated care.
Question 8: Which of the following is a PRIMARY function of sebum produced by the
sebaceous glands?
A. Regulation of body temperature
B. Lubrication and waterproofing of skin and hair
C. Production of vitamin D
D. Sensory perception
CORRECT ANSWER: B. Lubrication and waterproofing of skin and hair
Rationale: Sebum is an oily, waxy substance secreted by sebaceous glands that
lubricates the skin and hair, preventing dryness and providing a protective barrier
against moisture loss and microbial invasion. While sebum plays a role in skin health,
excessive production can contribute to acne development.
Question 9: In Florida, how often must an esthetician renew their professional
license?
A. Every year
B. Every two years
C. Every three years
D. Every four years
CORRECT ANSWER: B. Every two years
Rationale: Florida esthetician licenses must be renewed biennially (every two years)
through the Florida Board of Cosmetology. Licensees are required to complete
continuing education hours and pay renewal fees to maintain active status. Failure to
renew results in license expiration and inability to practice legally.
Question 10: Which skin type is characterized by enlarged pores, excess sebum
production, and a shiny appearance, particularly in the T-zone?
, A. Normal
B. Dry
C. Oily
D. Combination
CORRECT ANSWER: C. Oily
Rationale: Oily skin results from overactive sebaceous glands that produce excess
sebum, leading to enlarged pores, a glossy or shiny complexion, and increased
susceptibility to comedones and acne. Proper skincare for oily skin focuses on gentle
cleansing, oil-free products, and non-comedogenic formulations.
Question 11: What is the primary purpose of using a disinfectant on implements in
an esthetics practice?
A. To remove visible debris from tools
B. To destroy or inactivate pathogenic microorganisms
C. To polish metal instruments
D. To extend the lifespan of equipment
CORRECT ANSWER: B. To destroy or inactivate pathogenic microorganisms
Rationale: Disinfectants are chemical agents used to eliminate or inactivate disease-
causing microorganisms on non-porous surfaces and implements. Unlike sanitizers or
cleaners, EPA-registered hospital-grade disinfectants are required in professional
settings to meet state board infection control standards and prevent cross-
contamination.
Question 12: Which of the following ingredients is classified as a humectant and
functions by attracting water to the stratum corneum?
A. Mineral oil
B. Glycerin
C. Beeswax
D. Dimethicone
CORRECT ANSWER: B. Glycerin
Rationale: Glycerin is a humectant that draws moisture from the environment and
deeper skin layers to hydrate the stratum corneum. Humectants are essential in
moisturizers for improving skin hydration and barrier function. Mineral oil and
dimethicone are occlusives, while beeswax is an emollient and thickening agent.
Question 13: When waxing the upper lip, in which direction should the wax be
applied relative to hair growth?
A. Against the direction of hair growth
B. In the direction of hair growth
C. Perpendicular to hair growth
D. Direction does not matter
