NC Natural Hair Care key terms

The invasion of body tissue by disease-causing microorganisms that multiply and produce signs of illness. In the salon, infection risk comes from contaminated tools, hands, linens, and surfaces contacting broken skin or mucous membranes.

Any microorganism capable of causing disease, including certain bacteria, viruses, fungi, and parasites. Recognizing how pathogens spread helps a natural hair care professional choose the right level of cleaning, disinfection, or sterilization for each item.

Single-celled microorganisms that can reproduce rapidly on warm, moist surfaces and in soiled products. Most are harmless, but some cause skin and scalp infections, so implements and hands must be cleaned and disinfected between clients.

A microscopic infectious agent that reproduces only inside living host cells and is not affected by antibiotics. Viruses such as hepatitis B and HIV spread through blood and body fluids, making barrier protection and proper disinfection essential.

A spore-forming organism that thrives in warm, dark, moist areas such as the scalp. Fungal conditions like ringworm and some dandruff-related infections are contagious and require referral to a physician rather than salon treatment.

A disease-causing microorganism carried in blood or other potentially infectious material, such as hepatitis B, hepatitis C, and HIV. Salon workers must follow exposure control practices, including gloves and proper handling of contaminated items.

An infection control approach in which all blood, body fluids, and broken skin are treated as potentially infectious regardless of a client's known health status. It includes hand hygiene, gloves, and safe handling of sharps and soiled linens.

A specific event in which a worker's eyes, mouth, broken skin, or mucous membranes contact blood or other potentially infectious material. The worker should wash the area, report the incident, and seek medical evaluation promptly.

Barrier items worn to prevent contact with infectious material, such as disposable gloves, aprons, and eye protection. Gloves are single-use and must be changed between clients and whenever torn or visibly soiled.

The practice of washing hands with soap and water or using an alcohol-based hand rub at key moments, such as before and after each client and after removing gloves. It is the single most effective way to reduce infection spread.

The transfer of microorganisms from one person, tool, or surface to another. Sharing combs, using contaminated product, or touching a clean tool with soiled hands are common routes in a natural hair care setting.

The physical removal of visible dirt, debris, oils, and product residue from a surface or tool using soap or detergent and water. Cleaning must occur before disinfection because soil can prevent disinfectants from working.

The use of an EPA-registered product to destroy most pathogenic microorganisms on nonporous surfaces and implements, except bacterial spores. Proper contact time and correct dilution are required for the product to work.

The complete destruction of all microbial life, including bacterial spores, usually achieved with an autoclave using steam under pressure. It is required for items that may contact broken skin or body fluids.

The overall practice of maintaining clean, healthy conditions in the salon through routine cleaning, proper waste disposal, and safe work habits. It reduces the general level of contamination rather than killing all organisms on a surface.

A product carrying an Environmental Protection Agency registration number and label claims for hospital-grade or salon use. The label lists the required contact time, dilution, and the organisms the product is proven to kill.

The length of time a disinfectant must remain wet on a surface or tool to achieve its labeled kill claims. Shortening this time, or allowing the item to dry, means the item was not properly disinfected.

A tool that can be fully submerged in disinfectant without damage, such as metal shears, combs, and clips. Items that cannot be immersed must be cleaned and wiped with an appropriate disinfectant or replaced between clients.

A material that absorbs liquids and cannot be reliably disinfected, such as unglazed ceramic, foam, or unfinished wood. Porous items that cannot be cleaned should be discarded or given to the client rather than reused.

A product or tool designed to be used once and then discarded, such as disposable gloves, applicator brushes, and neck strips. Reusing these items spreads contamination and defeats their purpose.

A device that sterilizes tools using high-pressure steam and heat. Items must be cleaned first, and the unit must be operated according to manufacturer instructions and monitored for effectiveness.

A document supplied by a product manufacturer that describes a chemical's hazards, safe handling, first aid, and storage requirements. Workers must be able to access these sheets for hazardous products kept in the salon.

The federal agency that sets workplace safety rules, including the Hazard Communication Standard and the Bloodborne Pathogens Standard. Salons must provide training, protective equipment, and hazard information to employees.

The movement of fresh air through a space to remove fumes, dust, and chemical vapors. Adequate ventilation protects workers and clients from respiratory irritation caused by relaxers, dyes, and other salon chemicals.

A small-area application of a product, such as hair color or a chemical relaxer, to check for an allergic reaction before full service. Results are read after the manufacturer's stated waiting period, and a positive reaction cancels the service.

A condition that makes a service unsafe or inadvisable, such as broken or infected scalp skin, a contagious condition, or a known allergy. Recognizing contraindications protects the client and may require referral to a physician.

The pre-service conversation in which the professional assesses hair and scalp condition, reviews the client's history, and agrees on a plan. It documents allergies, prior chemical services, and expectations before any product is applied.

The assessment of a client's hair texture, porosity, density, elasticity, and scalp condition to guide product and technique choices. It determines whether hair can safely withstand a chemical service or needs conditioning first.

The ability of hair to absorb and retain moisture, related to the condition of the cuticle layer. Highly porous hair absorbs products quickly but loses moisture easily, so gentler formulations and sealing products are often needed.

The ability of wet hair to stretch and return to its original length without breaking. Low elasticity signals weak, damaged hair that may not tolerate chemical processing and needs strengthening treatment first.

The outermost layer of the hair shaft, made of overlapping scale-like cells that protect the inner structure. Rough or lifted cuticles cause dullness, tangling, and excessive porosity, and are smoothed by conditioning and low-pH products.

A product that permanently straightens curl by breaking bonds in the hair's cortex, typically using sodium hydroxide, guanidine, or ammonium thioglycolate. Strength, timing, and scalp protection determine results and safety.

Two relaxer formulations distinguished by whether a protective base cream must be applied to the scalp first. Base relaxers require scalp protection; no-base relaxers contain built-in protection but still need careful application.

A low-pH shampoo used after a relaxer service to stop chemical action and restore the hair's normal pH. Incomplete neutralizing leaves residual alkalinity that continues damaging the hair and scalp.

A scale from 0 to 14 measuring acidity and alkalinity, with 7 being neutral. Hair and skin prefer mildly acidic products, while relaxers are strongly alkaline, so pH guides product selection and neutralizing.

A conditioning service that temporarily fills gaps in damaged hair with protein or amino acids, improving strength and elasticity. It is used before or after chemical services but is not a substitute for trimming split ends.

The North Carolina state board responsible for licensing and regulating barbers, electrologists, and related practitioners under state law. It enforces sanitation standards, licensing requirements, and disciplinary procedures for licensees.

The legal authorization to practice granted by the state after meeting education, examination, and application requirements. Practicing without a current license, or allowing an unlicensed person to perform services, violates state law.

The range of services a licensee is legally permitted to perform under state law and training. Performing services outside that scope, such as certain medical or invasive procedures, can lead to discipline.

The specific cleaning, disinfection, and recordkeeping requirements adopted by the state board and enforced during inspections. Violations can result in fines, license suspension, or other disciplinary action.

Required ongoing training hours a licensee must complete to renew a license, covering topics such as sanitation and safety. Records must be kept and produced on request during renewal or audit.