GA Cosmetology key terms
GA Cosmetology · Get comfortable with the vocabulary.
- Disinfection
- Related: Sterilization, Sanitation
Using an EPA-registered chemical to destroy most harmful microorganisms on tools and surfaces, except bacterial spores. Salons disinfect implements after each client and follow label contact time.
- Sterilization
- Related: Disinfection, Universal Precautions
A process that destroys all microorganisms, including spores, usually with heat, steam, or pressure. It is used for items that may contact blood or broken skin.
- Sanitation
- Related: Disinfection, Sterilization
Cleaning with soap, water, or detergent to remove visible dirt and debris. It is the first step before disinfection and does not kill all germs by itself.
- Universal Precautions
- Related: Bloodborne pathogens, Disinfection
Treating all blood and body fluids as if they carry disease. This means gloves, handwashing, and careful handling of sharps and contaminated items for every client.
- Bloodborne pathogens
- Related: Universal Precautions, Virus
Microorganisms in blood or body fluids that can cause disease, including hepatitis B and HIV. Cosmetologists must prevent exposure and know the salon's exposure-control procedures.
- Safety Data Sheet (SDS)
- Related: OSHA, Disinfection
A manufacturer's document describing a product's hazards, safe use, first aid, and storage. Salons keep sheets available for the chemicals they use.
- Bacteria
- Related: Virus, Fungi
Tiny single-celled organisms that can cause infection. Harmful bacteria are controlled by handwashing, cleaning, and using the correct disinfectant at the correct strength.
- Virus
- Related: Bacteria, Bloodborne pathogens
A very small infectious agent that reproduces inside living cells and causes illnesses such as hepatitis and HIV. Viruses are not affected by antibiotics and require proper disinfection.
- Fungi
- Related: Onychomycosis, Disinfection
Plant-like organisms such as molds and yeasts that can cause skin and nail infections, including ringworm. They grow in warm, moist conditions and spread by contact.
- pH scale
- Related: Chemical relaxer, Hair porosity
A scale from 0 to 14 that measures acidity and alkalinity. Hair and skin are slightly acidic, and products that are too alkaline or acidic can damage them.
- Oxidation
- Related: Developer, Neutralizer
A chemical reaction that adds oxygen or removes electrons. In hair color and permanent waves it changes bonds and develops the result; in disinfection it helps kill germs.
- Hair follicle
A pocket in the skin that surrounds the hair root and supplies it with blood and nutrients. Each follicle grows one hair and can be affected by disease or damage.
- Hair porosity
- Related: Hair elasticity, Chemical relaxer
How well hair absorbs and holds moisture, based on the condition of its cuticle. Low porosity resists moisture, while high porosity absorbs quickly but loses it easily.
- Hair elasticity
- Related: Hair porosity, Chemical relaxer
The ability of hair to stretch and return to its normal length without breaking. Good elasticity means strong protein bonds; poor elasticity means fragile hair.
- Guideline
- Related: Elevation, Distribution
The first section of hair cut that sets the length and shape for later sections. A stylist follows the guideline to keep the haircut balanced.
- Elevation
- Related: Guideline, Distribution
The angle at which hair is held away from the head while cutting. Low elevation keeps weight; high elevation creates layers and removes weight.
- Distribution
- Related: Guideline, Elevation
The direction hair is combed or positioned before cutting or styling. It controls how the hair falls and where weight and movement appear in the finished look.
- Patch test
- Related: Strand test, Developer
A small skin test of a color or chemical product done 24 to 48 hours before a service. It checks for an allergic reaction; a positive result means do not proceed.
- Strand test
- Related: Patch test, Developer
A test on a small piece of the client's hair to see how a color, lightener, or relaxer will work. It helps predict timing and results.
- Developer
- Related: Oxidation, Strand test
A hydrogen peroxide product mixed with hair color or lightener to start the color reaction. Its strength determines how much the hair lightens.
- Chemical relaxer
- Related: Neutralizer, Hair elasticity
A strong product that straightens curly hair by breaking bonds in the hair's cortex. It requires a patch test, strand test, and careful timing to avoid damage.
- Neutralizer
- Related: Chemical relaxer, Oxidation
A product used after a relaxer or permanent wave to stop chemical processing and rebuild the hair's disulfide bonds. It helps the hair hold its new shape.
- Nail plate
- Related: Nail matrix, Lunula
The visible, hard part of the nail that protects the nail bed. It is made mostly of keratin and can show ridges, spots, or other signs of health.
- Nail matrix
- Related: Nail plate, Lunula
The area at the base of the nail where new nail cells are produced. Damage to the matrix can cause permanent nail deformity.
- Lunula
- Related: Nail matrix, Nail plate
The pale, half-moon shape at the base of the nail plate. It is the visible part of the nail matrix and may change with illness or injury.
- Onychomycosis
- Related: Fungi, Nail plate
A fungal infection of the nail that can cause thickening, discoloration, and separation from the nail bed. It is contagious and should be referred to a physician.
- Skin type
- Related: Exfoliation, Extraction
A classification of skin as normal, dry, oily, or combination based on oil production and moisture. It guides the choice of cleansers, masks, and moisturizers.
- Exfoliation
- Related: Skin type, Extraction
Removing dead skin cells from the surface with a scrub, enzyme, or acid. It can smooth and brighten skin, but overuse can irritate it.
- Extraction
- Related: Comedone, Exfoliation
Removing comedones or debris from pores during a facial, usually after softening the skin. Proper technique and sanitation are required to avoid injury or infection.
- Comedone
- Related: Extraction, Skin type
A plugged pore filled with oil and dead skin cells; a blackhead is open and a whitehead is closed. It is a common skin condition, not a disease.
- Client record
- Related: Service menu, Markup
A confidential card or file that notes a client's services, products used, reactions, and contact information. It helps provide consistent service and protects the salon legally.
- Service menu
- Related: Client record, Markup
A printed or digital list of the salon's services with descriptions and prices. It helps clients choose and keeps pricing consistent.
- Markup
- Related: Service menu, Client record
The amount added to the cost of a product or service to set its selling price. It must cover expenses and provide profit.
- OSHA
- Related: Safety Data Sheet (SDS), Bloodborne pathogens
The Occupational Safety and Health Administration, a federal agency that sets workplace safety rules. Salons follow OSHA standards for chemical safety, bloodborne pathogens, and hazard communication.
- Ergonomics
- Related: OSHA
Designing tools and work habits to fit the body and reduce strain. In salons it includes proper chair height, posture, and tool handling to prevent injury.
- Georgia State Board of Cosmetology and Barbers
- Related: Cosmetology license, Salon license
The state board that licenses barbers, cosmetologists, nail technicians, estheticians, and salons in Georgia. It enforces sanitation, education, and practice rules.
- Cosmetology license
- Related: Salon license, Continuing education
A credential issued by the Georgia board that allows a person to perform cosmetology services after meeting training and exam requirements. It must be renewed and displayed.
- Salon license
- Related: Cosmetology license, Georgia State Board of Cosmetology and Barbers
A license issued by the Georgia board for a business location to offer cosmetology services. It requires compliance with sanitation and supervision rules.
- Continuing education
- Related: Cosmetology license, Georgia State Board of Cosmetology and Barbers
Required training hours that licensees complete to renew their license and stay current. Georgia rules specify the number and type of hours.
- Reciprocity
- Related: Cosmetology license, Georgia State Board of Cosmetology and Barbers
A process that lets a licensed cosmetologist from another state apply for a Georgia license based on their existing credentials. The board reviews eligibility and may require extra steps.