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AL Esthetician study materials
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AL Esthetician practice questions

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Question 1Infection Control, Sanitation, and Safety

What should an esthetician do first before beginning any skin care service?

  1. Wash hands with soap and running water Correct answer.
  2. Mist the client's face with toner
  3. Apply hand sanitizer over the gloves
  4. Wipe the table down with a dry towel

Explanation

Handwashing with soap and running water removes soil and transient microorganisms and is performed before and after every service and again after gloves are removed.

Question 2Infection Control, Sanitation, and Safety

A product labeled 'hospital-grade' is best described as:

  1. a low-level sanitizer for porous tools
  2. a disinfectant that kills most pathogens Correct answer.
  3. a sterilant that destroys all bacterial spores
  4. a cleanser that lifts visible debris from skin

Explanation

Hospital-grade, EPA-registered disinfectants destroy most pathogenic bacteria, fungi, and many viruses on hard nonporous surfaces when the labeled contact time is met.

Question 3Infection Control, Sanitation, and Safety

Single-use gloves worn during a facial should be changed:

  1. after every three clients
  2. once at the start of each workday
  3. between every client Correct answer.
  4. only when they become visibly soiled

Explanation

Gloves are single-use items that are discarded after each client and whenever torn, with handwashing performed after removal.

Question 4Infection Control, Sanitation, and Safety

Why should product be removed from a jar with a clean spatula instead of the fingers?

  1. It makes the product last longer
  2. It prevents the product from oxidizing
  3. It prevents contamination of the product Correct answer.
  4. It keeps the product at the proper temperature during use

Explanation

Fingers carry microorganisms that can contaminate an entire jar, while a clean spatula keeps the product free of client and esthetician flora.

Question 5Infection Control, Sanitation, and Safety

Where should Safety Data Sheets for products used in a salon be kept?

  1. Filed with client consent forms
  2. Accessible to employees during working hours Correct answer.
  3. Locked in the owner's private office
  4. At the manufacturer's distribution center

Explanation

Hazard communication rules require an SDS for each hazardous chemical to be readily accessible to employees during their shift.

Question 6Infection Control, Sanitation, and Safety

Used razor blades and lancets should be disposed of in:

  1. a recycling bin for scrap metal
  2. a puncture-resistant sharps container Correct answer.
  3. a plastic-lined wastebasket next to the treatment table
  4. a sealed bag placed in the lobby trash

Explanation

Sharps go directly into a closable, puncture-resistant, labeled container kept close to the point of use.

Question 7Infection Control, Sanitation, and Safety

Which of these items is designed for single use and must be discarded after one client?

  1. Stainless steel tweezers
  2. Autoclave tray
  3. Wooden orange stick Correct answer.
  4. Glass mixing dish

Explanation

Porous materials such as wood absorb oils and moisture and cannot be reliably cleaned and disinfected, so they are used once and thrown away.

Question 8Infection Control, Sanitation, and Safety

Before an implement can be effectively disinfected, it must first be:

  1. cleaned of all visible debris Correct answer.
  2. wrapped in a clean towel
  3. soaked in acetone
  4. heated until warm

Explanation

Cleaning removes soil and lowers the microbial load; disinfectants cannot penetrate debris, so disinfection fails on a dirty implement.

Question 9Infection Control, Sanitation, and Safety

What does the contact time on a disinfectant label tell the esthetician?

  1. How quickly the product evaporates from the skin
  2. How long the product stays effective after opening the bottle
  3. How long the surface must stay wet with the product Correct answer.
  4. How long to scrub before rinsing

Explanation

Contact time, or dwell time, is the minimum period the surface must remain visibly wet for the product to achieve its labeled kill claims.

Question 10Infection Control, Sanitation, and Safety

Which statement about UV light cabinets in a salon is most accurate?

  1. They do not replace cleaning and disinfection Correct answer.
  2. They destroy all bacterial spores within a few minutes
  3. They sterilize metal implements if left in the unit overnight
  4. They are EPA-registered hospital disinfectants

Explanation

UV cabinets reach only surfaces the light strikes and are blocked by debris, so they are at most a storage aid and never a substitute for cleaning and EPA-registered disinfection.

Question 11Infection Control, Sanitation, and Safety

During extractions a client begins to bleed. What should the esthetician do?

  1. Stop the service and follow blood exposure procedures Correct answer.
  2. Ask the client whether she wants to continue
  3. Apply pressure and finish the extractions quickly
  4. Wipe the area with a tissue and continue the service

Explanation

Any blood exposure is managed under bloodborne pathogen procedures: stop, glove if not already gloved, clean and disinfect the area, dispose of contaminated items properly, and wash hands.

Question 12Infection Control, Sanitation, and Safety

How should clean, disinfected implements be stored?

  1. On a towel beside the sink
  2. In a clean, covered container Correct answer.
  3. In a drawer mixed with used tools
  4. Loose in an apron pocket

Explanation

Disinfected implements must be kept in a clean, closed container until use so dust, moisture, and soiled items cannot recontaminate them.

Question 13Infection Control, Sanitation, and Safety

Which item is nonporous and therefore suitable for disinfection?

  1. A natural-bristle makeup brush
  2. A terry cloth headband
  3. A cotton round
  4. A stainless steel comedone extractor Correct answer.

Explanation

Disinfection is reliable only on hard, nonporous surfaces that allow full contact with the product; porous items must be single use or laundered.

Question 14Infection Control, Sanitation, and Safety

Which items are appropriate to process in an autoclave?

  1. Metal implements that can withstand heat and moisture Correct answer.
  2. Wooden spatulas and porous applicators
  3. Fabric capes, towels, and reusable linens
  4. Any tool labeled for single use on the package

Explanation

Autoclaves use pressurized steam, which destroys all microbial life on items that tolerate high heat and moisture, such as stainless steel implements.

Question 15Infection Control, Sanitation, and Safety

What is the correct order for processing an implement after a service?

  1. Clean, rinse, dry, disinfect, store Correct answer.
  2. Sanitize, store, clean, and dry before reuse
  3. Rinse, disinfect, clean, store
  4. Disinfect, clean, rinse, dry

Explanation

Soil is removed first, the item is dried so the disinfectant is not diluted, then it is disinfected for the full contact time and stored clean.

Question 16Infection Control, Sanitation, and Safety

A client arrives with a cold sore on the lip. What is the appropriate action?

  1. Reschedule the service until the lesion has healed Correct answer.
  2. Increase the strength of the disinfectant used afterwards
  3. Proceed but skip the massage step
  4. Work around the lesion without comment

Explanation

Active herpes lesions are contagious, so service is deferred until healing to prevent autoinoculation and transmission through hands, tools, and linens.

Question 17Infection Control, Sanitation, and Safety

What is the main reason an esthetician wears gloves during a facial?

  1. To protect the esthetician's nails from staining
  2. To make the massage feel smoother to the client
  3. To keep the skin care products fresher in their jars
  4. To reduce the spread of microorganisms to and from the client Correct answer.

Explanation

Gloves form a barrier that keeps esthetician flora off the client and client body fluids off the esthetician, and they never replace handwashing.

Question 18Infection Control, Sanitation, and Safety

Which practice is recommended for laundering salon linens?

  1. Wash in cold water and add fabric softener
  2. Reuse a towel used on one client for the next client
  3. Store damp towels in a closed bin until morning
  4. Wash with detergent in hot water and dry completely Correct answer.

Explanation

Linens are laundered with detergent in hot water, dried thoroughly, and then stored away from soiled items and moisture.

Question 19Infection Control, Sanitation, and Safety

Quaternary ammonium compounds are most commonly used in the salon as:

  1. disinfectants for hard, nonporous surfaces Correct answer.
  2. exfoliating acids used in chemical peels
  3. moisturizers for dry hands after service
  4. solvents used to remove nail polish

Explanation

Quats are EPA-registered disinfectants for hard nonporous surfaces and must be used at the labeled dilution with the full contact time.

Question 20Infection Control, Sanitation, and Safety

Universal (standard) precautions require the esthetician to:

  1. sterilize all implements before every service
  2. increase disinfectant strength whenever tools look soiled
  3. treat all blood and body fluids as potentially infectious Correct answer.
  4. wear gloves only when a client appears ill

Explanation

Standard precautions assume every client may carry a pathogen, so barriers and safe handling are applied consistently rather than based on appearance or diagnosis.

Question 21Infection Control, Sanitation, and Safety

A facial steamer's power cord is frayed near the plug. What should the esthetician do?

  1. Remove the unit from service until it is repaired Correct answer.
  2. Wrap the frayed area with tape and continue using it
  3. Continue using it only at the lowest setting
  4. Plug it into a power strip for added protection

Explanation

Damaged cords can cause electric shock or fire, so the equipment is taken out of service and repaired by a qualified person before use.

Question 22Infection Control, Sanitation, and Safety

How does sterilization differ from disinfection?

  1. Disinfection destroys all spores, while sterilization kills only bacteria
  2. Sterilization is used only on single-use items
  3. The two terms are interchangeable in salon practice
  4. Sterilization destroys all microbial life, including spores Correct answer.

Explanation

Disinfection destroys most pathogens on nonporous surfaces but not necessarily spores, while sterilization such as autoclaving destroys all microbial life.

Question 23Infection Control, Sanitation, and Safety

An esthetician dips the same wooden spatula back into the wax pot after applying wax to a client's leg. This practice:

  1. is acceptable because hot wax kills bacteria on contact
  2. contaminates the entire pot with the client's microorganisms Correct answer.
  3. reduces product waste with no health consequence
  4. is acceptable if the client's skin was cleansed first

Explanation

Double dipping transfers client flora into the container, exposing every later client; a fresh spatula is used for each dip or product is dispensed onto a clean surface.

Question 24Infection Control, Sanitation, and Safety

A wet sanitizer jar has held disinfectant for three days and now contains visible debris. The esthetician should:

  1. add more disinfectant concentrate to strengthen the solution
  2. top off the jar with fresh disinfectant
  3. strain the solution and continue using it
  4. discard it, clean the jar, and refill fresh solution Correct answer.

Explanation

Disinfectant solutions lose effectiveness as soil and organic matter build up, so they are replaced on the manufacturer's schedule and whenever visibly dirty.

Question 25Infection Control, Sanitation, and Safety

Which action is most likely to cause cross-contamination between clients?

  1. Returning a used implement to the clean storage jar Correct answer.
  2. Washing hands after removing gloves
  3. Using a pump dispenser for massage cream
  4. Wearing gloves during extractions

Explanation

Placing a contaminated tool among clean ones transfers microorganisms to every implement in the container; used tools go to a designated soiled area instead.

Question 26Infection Control, Sanitation, and Safety

For how long should an esthetician lather and scrub the hands with soap under running water during routine handwashing?

  1. At least 2 minutes
  2. At least 20 seconds Correct answer.
  3. Until the soap lather is gone
  4. About 5 seconds

Explanation

Routine handwashing should last at least 20 seconds, with friction applied to all surfaces of the hands, wrists, and between the fingers. This duration allows soap and mechanical action to lift and rinse away transient microorganisms. Hands are washed before and after every client contact and after removing gloves.

Question 27Infection Control, Sanitation, and Safety

Where should an esthetician look to find the hazards, safe handling instructions, and first-aid steps for a disinfectant used in the salon?

  1. The product's SDS Correct answer.
  2. The client's signed intake record
  3. The salon's current business license
  4. The state board's published rulebook

Explanation

A Safety Data Sheet (SDS) accompanies every hazardous chemical and summarizes its hazards, safe handling and storage, required protective equipment, and first-aid measures. Employers must keep these sheets accessible to workers. The SDS is the reference document for chemical emergencies and safe use.

Question 28Infection Control, Sanitation, and Safety

An esthetician mixes a disinfectant more concentrated than the dilution ratio printed on the label, believing it will work better. What is the most accurate result?

  1. It disinfects the implements faster than the labeled time
  2. It violates the label and may be unsafe or damaging Correct answer.
  3. It is acceptable if the implements are rinsed well afterward
  4. It has no measurable effect on how the product works

Explanation

Disinfectants are formulated and tested at a specific dilution, and the label ratio is part of the product's EPA-registered use directions. Using a stronger mix does not shorten the required contact time and can injure skin, corrode implements, or create harmful fumes. The product must be measured and used exactly as directed.

Question 29Infection Control, Sanitation, and Safety

During a service, a drop of a client's blood splashes into the esthetician's eye. What should the esthetician do first?

  1. Wipe the eye with a paper towel and continue the service
  2. Finish the service, then rinse the eye at the end of the day
  3. Apply an antibacterial ointment to the eye
  4. Flush the eye with water and report the exposure Correct answer.

Explanation

Splashes of blood or other potentially infectious material to mucous membranes are exposure incidents that require immediate flushing with water, followed by reporting to the supervisor and medical follow-up as the exposure control plan directs. Delaying the flush increases the chance of infection. The service should not continue until the incident is handled.

Question 30Infection Control, Sanitation, and Safety

An esthetician pours a bleach-based disinfectant into a bucket that still holds an ammonia-based cleaner. What is the primary hazard of this practice?

  1. The bucket will melt from the chemical reaction
  2. The mixture will lose its color and stain the floor
  3. Toxic gas may be released Correct answer.
  4. The disinfectant will become more effective

Explanation

Mixing bleach with ammonia generates chloramine gases that can severely irritate or damage the respiratory tract and eyes. Chemicals must never be combined unless the label explicitly directs it, and containers should be emptied and rinsed before switching products. Good ventilation and separate labeled containers reduce this risk.

Question 31Skin Anatomy, Histology, and Physiology

Which epidermal layer is made up of flattened, fully keratinized cells that are continuously shed from the skin surface?

  1. Stratum granulosum
  2. Stratum corneum Correct answer.
  3. Stratum basale
  4. Stratum spinosum

Explanation

Epidermal cells mature as they move outward, and by the time they reach the outermost layer they have lost their nuclei and flattened into plates of keratin. This outermost layer, the stratum corneum, is the layer that sheds through desquamation.

Question 32Skin Anatomy, Histology, and Physiology

The dermis is classically described as being made up of which two layers?

  1. Papillary layer and reticular layer Correct answer.
  2. Stratum basale and stratum spinosum
  3. Epidermis and hypodermis
  4. Stratum corneum and stratum lucidum

Explanation

The dermis has a thinner, superficial papillary layer that forms the dermal papillae and a thicker, deeper reticular layer of dense connective tissue. The epidermis and hypodermis are separate layers, not subdivisions of the dermis.

Question 33Skin Anatomy, Histology, and Physiology

The subcutaneous layer, or hypodermis, is composed primarily of which tissue?

  1. Dense collagen bundles
  2. Adipose tissue and loose connective tissue Correct answer.
  3. Elastic cartilage
  4. Keratinized epithelial cells

Explanation

The hypodermis is the deepest skin layer and is dominated by fat cells supported by loose connective tissue. This composition lets it insulate the body, cushion underlying structures, and store energy.

Question 34Skin Anatomy, Histology, and Physiology

The acid mantle of healthy skin falls within which approximate pH range?

  1. 7.0 to 7.5
  2. 1.0 to 2.0
  3. 8.5 to 9.0
  4. 4.5 to 5.5 Correct answer.

Explanation

Sweat, sebum, and the breakdown products of epidermal proteins create a slightly acidic film on the skin surface. This acidity, usually given as about pH 4.5 to 5.5, discourages bacteria and supports the enzymes that maintain the barrier.

Question 35Skin Anatomy, Histology, and Physiology

New epidermal cells are produced by mitosis in which layer?

  1. Stratum lucidum
  2. Stratum granulosum
  3. Stratum basale Correct answer.
  4. Stratum corneum

Explanation

Cell division occurs in the single deepest layer of the epidermis, the stratum basale, which rests on the basement membrane. Daughter cells then migrate outward and differentiate as they go.

Question 36Skin Anatomy, Histology, and Physiology

A distinctly yellowish tint to the skin, most noticeable on the palms and soles, is most often explained by:

  1. Accumulation of carotene Correct answer.
  2. Increased melanin production
  3. Excess hemoglobin in the capillaries
  4. Loss of dermal collagen

Explanation

Carotene is a yellow-orange pigment stored in the fatty tissues of the body, including the thicker stratum corneum of the palms and soles. Melanin produces brown tones and hemoglobin produces pink-red tones.

Question 37Skin Anatomy, Histology, and Physiology

The average time for an epidermal cell to travel from the basal layer to the surface and shed is about:

  1. 60 days
  2. 14 days
  3. 28 days Correct answer.
  4. 7 days

Explanation

The commonly taught turnover time for epidermis is roughly 28 days, though it varies with age, body site, and skin condition. Faster turnover is seen in young skin and in some skin disorders.

Question 38Skin Anatomy, Histology, and Physiology

Melanocytes deliver pigment to surrounding keratinocytes by transferring:

  1. Gap junctions
  2. Melanosomes Correct answer.
  3. Desmosomes
  4. Hemidesmosomes

Explanation

Melanocytes package melanin inside melanosomes and pass these granules into neighboring keratinocytes, where the pigment caps the nucleus and shields DNA from ultraviolet damage. All skin tones have similar melanocyte numbers; differences lie in how much pigment is made and distributed.

Question 39Skin Anatomy, Histology, and Physiology

Which statement best describes the reticular layer of the dermis?

  1. The layer that houses the hair matrix cells
  2. The thin upper layer that forms the dermal papillae
  3. The deep layer with dense collagen bundles Correct answer.
  4. A fatty layer that insulates the body

Explanation

The reticular layer is the thicker, deeper portion of the dermis and is built from densely packed collagen and elastin bundles that give skin its strength and resilience. The papillary layer is the thinner, superficial portion that interdigitates with the epidermis.

Question 40Skin Anatomy, Histology, and Physiology

Elastin fibers in the dermis are primarily responsible for:

  1. Allowing the skin to stretch and recoil Correct answer.
  2. Carrying oxygen to cells
  3. Producing sebum
  4. Providing tensile strength

Explanation

Elastin is a coiled protein that lets skin stretch and then snap back into shape. Collagen, by contrast, provides tensile strength, and blood vessels handle oxygen transport.

Question 41Skin Anatomy, Histology, and Physiology

Sebaceous glands release sebum, and most of them empty into:

  1. Hair follicles Correct answer.
  2. Apocrine glands only
  3. Sensory nerve endings
  4. Eccrine sweat ducts

Explanation

Most sebaceous glands are attached to a hair follicle by a short duct, forming the pilosebaceous unit, and sebum travels along the hair shaft to the surface. Sebum lubricates skin and hair and contributes to the acid mantle.

Question 42Skin Anatomy, Histology, and Physiology

Which gland is distributed over nearly the entire body and produces watery sweat for cooling?

  1. Apocrine gland
  2. Ceruminous gland
  3. Sebaceous gland
  4. Eccrine gland Correct answer.

Explanation

Eccrine glands are the most numerous sweat glands, found on virtually all skin surfaces except a few areas such as the lips, and their watery secretion cools the body by evaporation. Apocrine glands are limited to specific regions and become active at puberty.

Question 43Skin Anatomy, Histology, and Physiology

Contraction of the arrector pili muscle produces which visible effect?

  1. Goose bumps and hair standing upright Correct answer.
  2. Increased sebum output
  3. Sweat released onto the surface
  4. Widening of dermal blood vessels

Explanation

The arrector pili is a tiny smooth muscle attached to the hair follicle and the dermis. When it contracts, the hair is pulled upright and the skin dimples, forming goose bumps.

Question 44Skin Anatomy, Histology, and Physiology

The whitish, half-moon-shaped area visible at the base of a nail plate is called the:

  1. Cuticle
  2. Free edge
  3. Nail bed
  4. Lunula Correct answer.

Explanation

The lunula is the visible portion of the nail matrix seen through the translucent nail plate at the proximal end. Its paler color reflects the thick, immature nail cells being produced beneath it.

Question 45Skin Anatomy, Histology, and Physiology

The skin's principal barrier against water loss is located in the:

  1. Hypodermis
  2. Stratum corneum Correct answer.
  3. Basal layer
  4. Reticular dermis

Explanation

The stratum corneum acts as the main barrier because its flattened, keratinized cells are surrounded by organized lipid lamellae. This brick-and-mortar arrangement limits transepidermal water loss and blocks entry of irritants.

Question 46Skin Anatomy, Histology, and Physiology

Exposure of skin to ultraviolet B light triggers which of the following functions?

  1. Vitamin D synthesis Correct answer.
  2. Thermoregulation
  3. Immune surveillance
  4. Sensory perception

Explanation

UVB light converts 7-dehydrocholesterol in the epidermis into a precursor that is later activated in the liver and kidneys to form vitamin D. This is one of the skin's metabolic functions beyond protection and sensation.

Question 47Skin Anatomy, Histology, and Physiology

Desmosomes serve which function in the epidermis?

  1. Anchoring basal cells to the basement membrane
  2. Producing keratin filaments
  3. Transferring melanin between cells
  4. Binding adjacent keratinocytes together Correct answer.

Explanation

Desmosomes are junctional protein complexes that rivet neighboring keratinocytes to each other, giving the epidermis its resistance to shearing forces. The similar structures that attach basal cells to the basement membrane are called hemidesmosomes.

Question 48Skin Anatomy, Histology, and Physiology

The keratohyalin granules that appear in epidermal cells are characteristic of the:

  1. Stratum corneum
  2. Stratum spinosum
  3. Stratum granulosum Correct answer.
  4. Stratum basale

Explanation

Keratohyalin granules first become prominent in the stratum granulosum, where they contribute to keratinization and to the formation of natural moisturizing factor. Their presence gives this layer its grainy appearance under a microscope.

Question 49Skin Anatomy, Histology, and Physiology

When core body temperature rises, dermal blood vessels respond by:

  1. Constricting to conserve heat
  2. Remaining unchanged in diameter
  3. Shifting blood into the hypodermis
  4. Dilating to release heat Correct answer.

Explanation

Vasodilation brings more warm blood to the skin surface, where heat can be lost to the environment, and it supports sweat production. In cold conditions the opposite occurs, with vasoconstriction conserving heat.

Question 50Skin Anatomy, Histology, and Physiology

Langerhans cells within the epidermis are best described as:

  1. Sensory receptors for touch
  2. Pigment-producing cells
  3. Immune cells that present antigens Correct answer.
  4. Keratin-producing cells

Explanation

Langerhans cells are dendritic immune cells of the epidermis that capture foreign material and present antigens to trigger an immune response. They are part of the skin's immune defense rather than its pigment or barrier system.