MS Cosmetology study materials
MS Cosmetology study resources

MS Cosmetology flashcards

MS Cosmetology · Build recall with a focused review session.

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Anagen phase
The active growth phase of the hair cycle, when cells in the follicle divide rapidly and the hair lengthens. It lasts several years and determines maximum hair length.
Cuticle layer
The outermost layer of the hair shaft, made of overlapping scales that protect the cortex. Damage to the cuticle causes dryness, split ends, and loss of shine.
Disinfection
A process that destroys most pathogenic microorganisms on surfaces and implements, but not necessarily bacterial spores. EPA-registered hospital-grade products are used with strict contact times.
Sterilization
The complete destruction of all microorganisms, including spores, on an object. It is required for items that penetrate skin or contact blood and is achieved with heat or chemical sterilants.
Patch test
A small amount of product applied to the skin 24–48 hours before a chemical service to check for allergic reaction. Results must be recorded in the client record.
Strand test
A test performed on a small section of hair before a chemical service to determine processing time, product strength, and expected result.
Developer volume
The concentration of hydrogen peroxide in a color developer. Ten volume deposits color, 20 lifts one level, 30 lifts two, and 40 lifts three levels.
Law of color
The principle that primary colors (red, yellow, blue) combine to form secondary colors, and complementary colors neutralize each other on the color wheel.
Level system
A scale from 1 (black) to 10 (lightest blonde) describing the lightness or darkness of hair color. Tone describes warm, cool, or neutral undertones.
Relaxer neutralizer
A shampoo that stops the chemical action of a relaxer and restores the hair's pH. Incomplete neutralization allows continued processing and causes damage.
Thioglycolate wave
A cold wave using ammonium thioglycolate to break disulfide bonds, followed by a neutralizer that re-forms the bonds in the new shape.
Elevation
The angle at which hair is held from the head during cutting. Zero degrees creates a blunt line, 45 degrees graduation, 90 degrees layers, and 180 degrees long layers.
Stationary guide
A section of hair that is not moved during a haircut and serves as the length reference for all other sections. It creates a solid or graduated shape.
Traveling guide
A guide that moves with each section as the haircut progresses, allowing the length to increase or decrease gradually across the head.
Texturizing
Cutting techniques such as point cutting, notching, and slicing that remove bulk, soften lines, and create movement without changing the overall shape.
Nail matrix
The area at the base of the nail where new cells are produced. Damage to the matrix can cause permanent nail deformity or abnormal growth.
Onychomycosis
A fungal infection of the nail plate that causes thickening, discoloration, and separation. It is contagious and requires medical treatment; do not service infected nails.
Paronychia
An infection of the tissue surrounding the nail, often caused by bacteria entering through a cut or torn cuticle. It causes redness, swelling, and pain.
Skin types
The classification of skin as normal, dry, oily, or combination based on sebum production, pore size, and texture. Skin conditions such as acne or sensitivity are assessed separately.
Effleurage
A light, gliding massage stroke used at the beginning and end of a facial or scalp massage to warm tissue and improve circulation.
Extraction
The removal of comedones or milia from pores during a facial. It is performed only on non-inflamed lesions and avoided on cystic acne or broken skin.
Acid mantle
The slightly acidic film on the skin's surface (about pH 4.5–5.5) that protects against bacteria and moisture loss. Alkaline products can disrupt it.
Sebaceous gland
A gland attached to the hair follicle that secretes sebum to lubricate hair and skin. Overactivity contributes to oily hair and acne.
Telogen phase
The resting phase of the hair cycle, when growth stops and the hair eventually sheds. It lasts about three months before a new anagen phase begins.
EPA-registered disinfectant
A product approved by the Environmental Protection Agency for killing pathogens on surfaces. It must be used at the labeled dilution and contact time.
Safety Data Sheet
A document provided by chemical manufacturers that lists hazards, handling precautions, and first-aid measures for a product. It must be available in the salon.
Board license posting
A Mississippi requirement that the current license be displayed in plain view at the workstation or establishment. Practicing without a posted, current license violates Board rules.
Establishment license
A license issued by the Mississippi State Board of Cosmetology to a salon or school. It must be current, posted, and overseen by a licensed responsible individual.
Client consultation
A documented conversation before service that identifies allergies, medications, prior chemical services, and desired results. It guides product choice and reduces risk.
Confidentiality
The professional obligation to protect client information and not disclose it without consent. It includes service records, photos, and personal details.
Porosity
The ability of hair to absorb and retain moisture, determined by cuticle condition. High porosity absorbs quickly but loses moisture and color faster.
Elasticity
The ability of hair to stretch and return to its original length without breaking. Poor elasticity indicates damage and limits chemical services.