MA Barber study materials
MA Barber study resources

MA Barber key terms

MA Barber · Get comfortable with the vocabulary.

Disinfection

The process of killing or reducing harmful microorganisms on tools and surfaces using a chemical product registered for that purpose, short of destroying bacterial spores.

Related: Sterilization, EPA-registered disinfectant, Blood spill procedure
Sterilization

The complete destruction of all microorganisms, including bacterial spores, on an implement, usually achieved with an autoclave or approved high-level method.

Related: Disinfection, Autoclave, Blood spill procedure
EPA-registered disinfectant

A product carrying a U.S. Environmental Protection Agency registration number and label claims for hospital-grade or barber use against pathogens such as bacteria and fungi.

Related: Disinfection, Contamination, Blood spill procedure
Blood spill procedure

The required steps for handling blood or body fluid on skin or surfaces: stop service, put on gloves, clean the area, disinfect with an EPA-registered product, and dispose of contaminated items properly.

Related: Disinfection, Universal precautions, Contamination
Universal precautions

The practice of treating all blood, body fluids, and potentially infectious materials as if they carry disease, using gloves and barriers for every client.

Related: Blood spill procedure, Contamination
Contamination

The presence of infectious material or dirt on a tool, surface, or person that makes it unsafe for use until cleaned and disinfected.

Related: Disinfection, Universal precautions
Autoclave

A device that uses pressurized steam to sterilize metal implements and other heat-tolerant items, monitored with indicators to confirm the cycle worked.

Related: Sterilization, Disinfection
Furuncle

A painful, pus-filled bacterial infection of a hair follicle, often called a boil, which must not be serviced until it has healed.

Related: Folliculitis, Contraindication
Folliculitis

Inflammation or infection of hair follicles, appearing as small red bumps or pustules, common after shaving or waxing and requiring referral if widespread.

Related: Furuncle, Pseudofolliculitis barbae
Pseudofolliculitis barbae

A shaving-related condition in which tightly curled hair re-enters the skin and causes bumps and irritation, often managed by altering shaving technique or letting hair grow.

Related: Folliculitis, Razor bump
Tinea barbae

A fungal infection of the beard area and facial hair that causes scaling, redness, and hair loss and must not be serviced by the barber.

Related: Tinea capitis, Contraindication
Tinea capitis

A contagious fungal infection of the scalp, common in children, causing scaly patches and broken hairs; it requires medical treatment and referral.

Related: Tinea barbae, Contraindication
Pediculosis

An infestation of lice, such as head lice on the scalp or hair, which is contagious and requires the client to be referred and the service postponed.

Related: Contraindication, Tinea capitis
Contraindication

A condition or circumstance that makes a service unsafe or inadvisable, such as an active infection, open sore, or contagious disease, requiring the barber to refuse or modify the service.

Related: Universal precautions, Furuncle
Alopecia

Loss of hair from the scalp or body, which may be temporary or permanent and can result from genetics, illness, medication, or styling tension.

Related: Traction alopecia, Hair growth cycle
Traction alopecia

Hair loss caused by prolonged pulling or tension on the hair, such as tight braids or weaves, which can become permanent if the styling habit continues.

Related: Alopecia, Hair growth cycle
Hair growth cycle

The repeating stages a hair follicle passes through: the growth phase, a transition phase, a resting phase, and shedding of the old hair.

Related: Alopecia, Hair shaft layers
Hair shaft layers

The three structural layers of a hair: the outer cuticle, the middle cortex that holds pigment and strength, and the inner medulla, which may be absent in fine hair.

Related: Hair growth cycle, Porosity
Porosity

The ability of hair to absorb moisture, determined by the condition of the cuticle; highly porous hair takes color quickly but loses moisture easily.

Related: Hair shaft layers, Patch test
Patch test

A small skin test of a chemical product, such as hair dye, applied before a full service to check for an allergic reaction, usually 24 to 48 hours ahead.

Related: Porosity, Relaxer
Relaxer

A chemical product, usually containing sodium hydroxide or another alkali, that straightens curly or wavy hair by breaking and reforming bonds in the cortex.

Related: Neutralizer, Patch test
Neutralizer

The chemical solution applied after a permanent wave or relaxer to stop the chemical action and rebuild bonds, restoring the hair's new shape.

Related: Relaxer, Permanent wave
Permanent wave

A chemical service that creates lasting curl by breaking and reforming disulfide bonds in the hair using a waving solution and a neutralizer.

Related: Neutralizer, Strand test
Strand test

A test on a small section of hair, used before chemical services, to predict how the hair will respond to a product and to time the process safely.

Related: Permanent wave, Relaxer
Razor bump

A small irritated bump caused by shaving, often from a hair curling back into the skin or from friction, and managed by improving shaving and aftercare technique.

Related: Pseudofolliculitis barbae, Shaving grain
Shaving grain

The direction in which facial hair grows; barbers shave with the grain first to reduce irritation and razor burn, especially on sensitive skin.

Related: Razor bump, Hot towel preparation
Hot towel preparation

The use of warm, damp towels on the face before shaving to soften the beard, open pores, and make the shave more comfortable.

Related: Shaving grain, Astringent
Astringent

A product applied after shaving to tighten pores, remove residue, and soothe the skin, often containing witch hazel or similar ingredients.

Related: Hot towel preparation
Beard design

Shaping and outlining facial hair, including the cheek line, neckline, and mustache, to create a balanced look suited to the client's face shape.

Related: Shaving grain, Astringent
Elevation

The angle at which hair is held away from the head before cutting, which determines the length and the amount of graduation in the finished style.

Related: Guideline, Blunt cut
Guideline

The first section of hair cut to a set length that serves as the reference point for cutting the rest of the haircut evenly.

Related: Elevation, Blunt cut
Blunt cut

A haircut in which hair is cut at a single length with no elevation, creating a solid, even line at the ends.

Related: Elevation, Guideline
Clipper-over-comb

A barbering technique in which clippers run over a comb held in the hair to shorten and blend lengths, especially on the sides and back.

Related: Elevation, Taper
Taper

A gradual shortening of hair length toward the neckline and around the ears, creating a blended, natural finish.

Related: Clipper-over-comb, Guideline
Massachusetts Board of Registration of Barbers

The state board responsible for licensing barbers and shops and for enforcing the barbering statutes and regulations in Massachusetts.

Related: Sanitation inspection, License display
License display

The requirement that a barber's license and the shop's license be posted in a visible place in the shop so the public and inspectors can see them.

Related: Massachusetts Board of Registration of Barbers, Sanitation inspection
Sanitation inspection

A review by state or local officials of a barbershop's cleaning practices, tool disinfection, and record keeping to confirm compliance with regulations.

Related: Massachusetts Board of Registration of Barbers, Disinfection