MD Nail Technician key terms

A process that uses chemicals to destroy most harmful microorganisms, except bacterial spores, on nonporous tools and surfaces. In the salon it is required for reusable implements after every client.

A process that destroys all microorganisms, including bacterial spores, usually through heat, steam, or pressure. It is reserved for items that may contact broken skin or blood.

The physical removal of visible dirt, oils, and debris from tools, hands, or surfaces using soap, water, and scrubbing. Cleaning must happen before any disinfecting step.

A standardized document supplied with a chemical product that lists its hazards, safe handling, first-aid steps, and storage needs. Technicians should keep one accessible for every product used in the salon.

Disease-causing microorganisms such as hepatitis B and HIV that spread through contact with infected blood or body fluids. Technicians lower the risk with gloves, hand washing, and proper tool care.

A device that uses high-pressure steam to sterilize metal implements and other heat-tolerant items. Correct loading and regular spore testing confirm that it is working properly.

A disinfectant proven able to kill the bacterium that causes tuberculosis. Many states, including Maryland, require salon disinfectants to carry this claim to qualify as hospital-grade.

The transfer of germs from one person, tool, or surface to another. It is prevented by using clean implements, washing hands, and disinfecting items between clients.

The hard, visible part of the nail made mostly of keratin that rests on the nail bed. It protects the sensitive tissue beneath and is the surface polish and enhancements sit on.

The layer of skin directly beneath the nail plate that contains nerves and blood vessels. Damage to it can cause pain or permanently change how the nail grows.

The hidden area at the base of the nail where new cells form and push forward to build the nail plate. Injury here can permanently affect nail shape or growth.

The whitish half-moon shape visible at the base of some nail plates. It is the visible portion of the matrix and looks lighter because its cells are not fully hardened yet.

The living fold of skin at the base of the nail that seals and protects the matrix. Only the thin dead tissue on the plate should be gently pushed back, never deeply cut.

The skin seal under the free edge of the nail where the plate separates from the fingertip. It helps keep bacteria and dirt from entering the nail bed.

The part of the nail plate that extends past the fingertip. It has no nail bed beneath it and is shaped and filed during manicuring services.

A tough protein that makes up most of the nail plate, hair, and outer skin. Nail strength and flexibility depend on keratin along with moisture and natural oils.

A fungal infection of the nail that often causes thickening, discoloration, and crumbling. It is contagious and should be referred to a physician rather than treated in the salon.

Inflammation or infection of the skin around the nail that looks red, swollen, and tender. Technicians should not perform services on inflamed skin and should suggest medical care.

A light, gliding massage stroke used in hand and arm massage to relax muscles and support circulation. It is performed with steady, even pressure, usually toward the heart.

A thin first layer of polish that helps color adhere, prevents staining of the nail plate, and can smooth minor ridges. It must dry or cure before color is applied.

The final polish layer that adds shine, seals in color, and helps resist chipping. Some top coats must be cured under a UV or LED lamp.

A number describing how coarse a file or buffer is, with lower numbers being coarser and removing more material. Choosing the right grit protects the natural nail from damage.

A pre-shaped plastic extension glued to the free edge of the natural nail to add length. It is blended into the plate and then covered with an overlay product.

The liquid component of an acrylic system that reacts with polymer powder to form a hard enhancement. It should be used with good ventilation and kept off the skin.

The chemical process in which small molecules link into long chains, turning a liquid product into a solid. In acrylics it begins when monomer meets polymer; in gels, light starts it.

A liquid applied to the natural nail before some enhancements to improve adhesion by preparing the surface. It should be used sparingly and kept off the surrounding skin.

Exposing a gel product to a specific wavelength of UV or LED light so it hardens. The correct lamp type and timing are needed for a full cure and to avoid skin reactions.

The slightly thicker area built over the stress zone, the part of an enhancement that takes the most force in daily use. Correct structure here helps prevent cracks and breaks.

A fabric or fiber overlay such as silk, linen, or fiberglass applied with resin or glue to strengthen or repair a nail. Wraps add support and can hold a split until it grows out.

Decorative design added to natural or enhanced nails using polish, paint, stones, foil, or stamping. Designs are planned in advance and sealed so they hold up to daily wear.

A condition or situation that makes a service unsafe or unwise, such as broken skin, infection, or an allergic reaction. Technicians must recognize these and refer the client when needed.

A client's agreement to a service after being told what it involves, its risks, and the alternatives. It should be documented and can be withdrawn at any time.

The conversation before a service in which the technician asks about the client's goals, health, and history, then explains options and aftercare. It guides service choices and builds trust.

Written documentation of each client's services, products used, and any reactions or notes. Records support follow-up care, protect the salon legally, and must be kept private.

Setting the amount charged for a service by covering products, labor, overhead, and profit rather than guessing. Prices should be reviewed regularly and stated clearly to clients.

The services and actions a licensed professional is legally allowed to perform under state law. Working outside that boundary can lead to discipline or loss of the license.

The legal permission to practice granted by a state board after a person meets education, exam, and application requirements. Licenses must be renewed and displayed as the board requires.

Training hours a licensee completes to renew a license and stay current on safety and technique. The state board sets the required hours and approved subject areas.