MI Nail Technician study materials
MI Nail Technician study resources

MI Nail Technician key terms

MI Nail Technician · Get comfortable with the vocabulary.

Disinfection

Using an EPA-registered hospital-grade product to destroy most disease-causing bacteria, fungi, and viruses on hard, nonporous implements and surfaces after they have been cleaned.

Related: Sanitation, Sterilization, EPA-registered hospital-grade disinfectant
Sterilization

A process that destroys all microorganisms, including bacterial spores, on an item. In salons it is usually done with an autoclave for metal implements that may contact blood.

Related: Disinfection, Autoclave
Sanitation

A lower-level cleaning step that uses soap, water, and friction to remove visible debris and reduce the number of germs on surfaces, tools, and hands before disinfection.

Related: Disinfection, Single-use implement
EPA-registered hospital-grade disinfectant

A product carrying an EPA registration number and labeled hospital-grade, meaning it is proven to kill a broad range of pathogens on properly cleaned nonporous surfaces within the labeled contact time.

Related: Disinfection, Sterilization
Bloodborne pathogens

Microorganisms such as hepatitis B, hepatitis C, and HIV that are carried in blood and can pass to a worker through a needlestick, a cut, or a splash to the eyes or mouth.

Related: Universal precautions, OSHA
Universal precautions

An approach in which every client's blood and body fluids are treated as if they carry infectious disease, so gloves and other protective measures are used every time.

Related: Bloodborne pathogens, OSHA
OSHA

The federal agency that sets workplace safety rules, including the Bloodborne Pathogens Standard requiring exposure control plans, training, and personal protective equipment in salons.

Related: Bloodborne pathogens, Universal precautions
Single-use implement

A disposable item, such as a wooden stick, nail file, or porous buffer, designed for one client and then thrown away because it cannot be properly cleaned and disinfected.

Related: Disinfection, Sanitation
Base coat

A thin first layer of polish applied to the natural nail to improve adhesion of the color and help prevent the nail plate from being stained by pigment.

Related: Top coat
Top coat

The final polish layer that adds shine, seals in the color, and helps protect a manicure or pedicure from chipping and everyday wear.

Related: Base coat
Monomer

The liquid part of an acrylic enhancement system, usually ethyl methacrylate, that reacts with polymer powder to form a hard, cured artificial nail coating.

Related: Polymer, EMA
Polymer

The fine powder part of an acrylic enhancement system that, when mixed with monomer liquid, forms a workable bead that hardens into an artificial nail.

Related: Monomer, Apex
Primer

A liquid applied to the natural nail before acrylic or gel products to remove surface oils and improve the bond between the nail plate and the enhancement.

Related: Monomer, Apex
Apex

The thickest, highest point of an artificial nail, placed over the stress area near the free edge, giving the enhancement strength where breakage is most likely.

Related: Polymer, Monomer
UV/LED gel

A light-cured enhancement product that stays soft until exposed to an ultraviolet or LED lamp, where photoinitiators in the gel cause it to harden into a durable coating.

Related: Primer
EMA

Ethyl methacrylate, the monomer liquid commonly used in salon acrylic systems; it is less irritating to skin than methyl methacrylate and is the accepted choice for nail enhancements.

Related: Monomer, Methyl methacrylate (MMA)
Nail plate

The visible, hard keratin covering on the back of a fingertip or toe that protects the sensitive tissue of the nail bed underneath it.

Related: Matrix, Lunula, Eponychium
Matrix

The tissue at the base of the nail where new nail cells are produced; injury here can permanently change the shape, thickness, or growth of the nail.

Related: Nail plate, Lunula
Lunula

The whitish, half-moon shape seen at the base of the nail plate, which is the visible portion of the nail matrix below it.

Related: Matrix, Nail plate
Eponychium

The living skin at the base of the nail plate that overlaps the matrix; it is often confused with the cuticle and should not be cut with sharp tools.

Related: Nail plate, Hyponychium
Hyponychium

The skin seal located beneath the free edge of the nail plate, where the nail separates from the fingertip and where dirt and debris tend to collect.

Related: Eponychium, Nail plate
Onychomycosis

A fungal infection of the nail that can cause thickening, discoloration, and lifting of the nail plate; it is a reason to refuse service and refer the client for medical care.

Related: Paronychia, Onycholysis
Paronychia

Inflammation or infection of the skin around the nail, often red, swollen, and painful; bacterial cases need medical care and the area should not be worked on.

Related: Onychomycosis, Contraindication
Onycholysis

Separation of the nail plate from the nail bed, which can result from trauma, aggressive filing, or infection and leaves a white, hollow-looking area.

Related: Onychomycosis, Green nail syndrome
Green nail syndrome

A green-black discoloration of the nail plate caused by Pseudomonas bacteria growing in a moist, lifted area under the nail; it is not a mold and should be referred for care.

Related: Onycholysis, Onychomycosis
Acetone

A fast-evaporating solvent used to remove nail polish and to soak off gel or acrylic products; it is flammable and must be kept in a closed container away from flames.

Related: Safety Data Sheet (SDS), UV/LED gel
Curette

A small, spoon-shaped metal tool used to gently scrape debris from under the free edge and around the nail folds; it must be cleaned and disinfected between clients.

Related: Disinfection, Single-use implement
Nail nipper

A heavy-duty tool with curved cutting jaws used to trim thick nails or artificial nail extensions; it requires cleaning and disinfection between every client.

Related: Curette, Disinfection
Safety Data Sheet (SDS)

A standardized document from a product manufacturer listing a chemical's hazards, safe handling, first aid steps, and storage requirements; it must be kept accessible in the salon.

Related: Acetone
Autoclave

A device that uses high-pressure steam to sterilize metal implements; items must be cleaned and dried first, and proper packaging and cycle monitoring are required.

Related: Sterilization, Disinfection
File grit

A number describing how coarse a nail file is: lower numbers mean a coarser abrasive and higher numbers mean a finer one, with coarse files removing product quickly.

Related: Single-use implement
Michigan Board of Cosmetology

The state board within Michigan's Department of Licensing and Regulatory Affairs that advises on and enforces the rules for cosmetology and nail technician licensing and practice.

Related: Scope of practice, Licensure
Scope of practice

The set of services a licensed nail technician may legally perform in Michigan, such as manicuring, pedicuring, and applying artificial nails, and the tasks left to others.

Related: Licensure, Michigan Board of Cosmetology
Licensure

The state-issued credential that lets a person legally perform and charge for nail services; in Michigan it requires finishing an approved program, passing the examination, and renewing as required.

Related: Scope of practice, Michigan Board of Cosmetology
Methyl methacrylate (MMA)

A liquid monomer linked to severe allergic reactions and nail damage that is not permitted for artificial nails under Michigan salon rules; ethyl methacrylate is used instead.

Related: EMA, Monomer
Informed consent

Explaining a service, its risks, and its alternatives to a client and obtaining their agreement before beginning, with the discussion noted in the client record.

Related: Client consultation, Contraindication
Client consultation

The conversation before a service in which the technician asks about health conditions, medications, allergies, and service goals, then examines the hands and nails to plan safe work.

Related: Contraindication, Informed consent
Contraindication

A condition, such as an infection, open wound, or contagious skin disorder, that makes a nail service unsafe and means the client should be referred to a physician instead.

Related: Client consultation, Onychomycosis