CA Nail Technician study materials
CA Nail Technician study resources

CA Nail Technician key terms

CA Nail Technician · Get comfortable with the vocabulary.

California Board of Barbering and Cosmetology (BBC)

The state agency that licenses nail technicians and salons and enforces the laws and rules covering cosmetology, barbering, electrology, and manicuring in California.

Related: Establishment License, Health and Safety Rules
Establishment License

A license issued by the Board that allows a salon to legally offer nail and other cosmetology services; the license must be posted and kept current.

Related: California Board of Barbering and Cosmetology (BBC), Disinfection
Health and Safety Rules

Board regulations that set minimum sanitation, disinfection, and record-keeping standards for salons and licensees, including rules for cleaning implements and disposing of waste.

Related: Disinfection, California Board of Barbering and Cosmetology (BBC)
Scope of Practice

The specific services a licensed nail technician is legally permitted to perform, such as manicures, pedicures, and nail extensions, and the tasks that are reserved for other licensees.

Related: Establishment License
Disinfection

The process of killing most harmful microorganisms on surfaces and implements using an EPA-registered hospital-grade disinfectant, after the items have been cleaned of visible debris.

Related: Sterilization, Hospital-Grade Disinfectant, Cleaning
Sterilization

A process that destroys all microbial life, including bacterial spores, usually through heat, steam, or chemical sterilants; it is stronger than disinfection and used for items that contact broken skin.

Related: Disinfection, Autoclave
Cleaning

The first step of infection control: removing visible dirt, oil, product residue, and debris from implements and surfaces with soap and water before any disinfection takes place.

Related: Disinfection, Hospital-Grade Disinfectant
Hospital-Grade Disinfectant

An EPA-registered product labeled as a hospital disinfectant that is used at the correct dilution and contact time to kill pathogens on implements and work surfaces.

Related: Disinfection, Contact Time, Cleaning
Contact Time

The number of minutes an implement or surface must stay wet with a disinfectant for the product to work as labeled; skipping this time means the item is not properly disinfected.

Related: Hospital-Grade Disinfectant
Autoclave

A device that uses pressurized steam and high heat to sterilize metal implements and other heat-safe items after they have been cleaned and dried.

Related: Sterilization
Single-Use Item

A product or tool, such as a nail file, buffer, or wooden stick, that cannot be safely cleaned and disinfected and must be thrown away after one client.

Related: Disinfection, Cleaning
Universal Precautions

An infection-control approach in which every client is treated as potentially infectious, so gloves, handwashing, and barrier tools are used consistently with all clients.

Related: Disinfection, Personal Protective Equipment (PPE)
Personal Protective Equipment (PPE)

Items worn to protect the technician from exposure, such as disposable gloves, safety glasses, and masks, which are changed between clients and discarded properly.

Related: Universal Precautions
Nail Plate

The hard, visible keratin layer that covers the nail bed and protects the sensitive tissue beneath it; its surface is where polish and enhancements are applied.

Related: Nail Bed, Keratin, Matrix
Nail Bed

The pink tissue under the nail plate that contains blood vessels and nerves and supplies the nail plate with moisture and nutrients.

Related: Nail Plate, Matrix
Matrix

The living area at the base of the nail where new cells form and harden into the nail plate; injury or pressure here can permanently change nail growth.

Related: Nail Plate, Lunula
Lunula

The whitish, half-moon shape visible at the base of the nail plate; it is the visible portion of the matrix and is often lighter in color.

Related: Matrix
Cuticle

The thin layer of dead skin that seals the base of the nail plate to the surrounding skin and protects the matrix from bacteria and debris.

Related: Eponychium, Nail Plate
Eponychium

The living skin at the base of the nail plate, just above the cuticle; it should never be cut because it protects the nail from infection.

Related: Cuticle
Hyponychium

The skin that seals the free edge of the nail plate to the fingertip, helping keep dirt and microorganisms out from under the nail.

Related: Free Edge, Nail Plate
Free Edge

The part of the nail plate that extends beyond the fingertip and is filed or trimmed during a manicure or pedicure.

Related: Hyponychium, Nail Plate
Keratin

The tough protein that makes up the nail plate and the outer layer of skin; its strong bonds give nails their hardness and shape.

Related: Nail Plate
Contraindication

A condition or circumstance that makes a service unsafe to perform, such as an infection, open wound, or skin disease; the technician should refer the client to a physician.

Related: Paronychia, Onychomycosis, Client Consultation
Client Consultation

The conversation before a service in which the technician asks about health history, allergies, medications, and preferences, then explains the procedure and confirms the client's goals.

Related: Contraindication, Patch Test
Patch Test

A small test application of a product on the skin, usually the inner arm, done before a full service to check whether the client is allergic or sensitive to it.

Related: Client Consultation, Allergic Contact Dermatitis
Allergic Contact Dermatitis

An allergic skin reaction causing redness, itching, swelling, or blisters where a product touched the skin; it can develop after repeated exposure to ingredients such as acrylates.

Related: Patch Test, Sensitization
Paronychia

An infection of the skin around the nail that causes redness, swelling, and pain; it is a contraindication for nail services and should be treated by a doctor.

Related: Contraindication, Nail Fungus (Onychomycosis)
Nail Fungus (Onychomycosis)

A fungal infection of the nail that can cause thickening, discoloration, and crumbling of the nail plate; it is contagious and must be treated medically, not cosmetically.

Related: Contraindication, Paronychia
Onycholysis

Separation of the nail plate from the nail bed, often caused by trauma, aggressive filing, or prolonged moisture; the loose area should not be forced or filled.

Related: Nail Bed, Contraindication
Nail Primer

A liquid applied to the natural nail before some enhancement products to improve adhesion; it must be used sparingly and kept off the skin.

Related: Sculptured Nail, Acrylic (Liquid and Powder)
Acrylic (Liquid and Powder)

A two-part enhancement system in which a liquid monomer is mixed with a polymer powder to form a hard, sculptable bead that cures on the nail.

Related: Monomer, Nail Primer
Monomer

The liquid part of an acrylic system, usually ethyl methacrylate, that reacts with the polymer powder to harden; it is flammable and must be used with ventilation.

Related: Acrylic (Liquid and Powder), Sensitization
Sculptured Nail

An artificial nail built on the natural nail or form using acrylic, gel, or other enhancement products, shaped and filed to the desired length and style.

Related: Acrylic (Liquid and Powder), Nail Primer
Nail Wrap

A thin material such as silk, fiberglass, or linen applied over the nail plate with resin to strengthen or repair it; it is not a full sculptured extension.

Related: Sculptured Nail
Sensitization

The process in which repeated skin contact with an ingredient, such as an acrylate, triggers an allergic response that can make future work with that product unsafe.

Related: Allergic Contact Dermatitis, Monomer, Personal Protective Equipment (PPE)
Material Safety Data Sheet (SDS)

A document supplied by a product manufacturer that lists a product's hazards, safe handling instructions, first-aid measures, and storage requirements.

Related: Monomer, Ventilation
Ventilation

The movement of fresh air through the salon, using exhaust fans or open windows, to reduce exposure to vapors, dust, and fumes from nail products.

Related: Monomer, Material Safety Data Sheet (SDS)
Nail Drill (E-File)

An electric rotary tool with interchangeable bits used to shape enhancements and reduce product; bits must be cleaned, disinfected, and used with care to avoid burning the nail.

Related: Disinfection, Nail Plate
Foot Bath (Pedicure Basin)

A basin used to soak the feet during a pedicure; after each client it must be drained, cleaned, and disinfected with an EPA-registered product before reuse.

Related: Disinfection, Hospital-Grade Disinfectant