MS Esthetician study materials
MS Esthetician study resources

MS Esthetician key terms

MS Esthetician · Get comfortable with the vocabulary.

Mississippi Board of Cosmetology

The state agency that licenses estheticians, salons, and schools in Mississippi and enforces the cosmetology statutes and administrative rules governing practice, sanitation, and scope.

Related: Scope of Practice, Licensure
Scope of Practice

The legally permitted services and techniques an esthetician may perform under a state license; performing outside these limits is unlawful and can lead to discipline or license loss.

Related: Mississippi Board of Cosmetology, Contraindication
Licensure

The credential issued by the state after an applicant meets education, examination, and application requirements, authorizing the holder to practice esthetics and use the protected title.

Related: Mississippi Board of Cosmetology, Continuing Education
Continuing Education

Required hours of approved coursework a licensee completes during each renewal cycle to maintain an active license and stay current on law, safety, and technique.

Related: Licensure, Standard Precautions
Pathogen

Any disease-causing microorganism, including bacteria, viruses, fungi, and parasites. Estheticians must assume every client and surface may carry pathogens and act accordingly.

Related: Standard Precautions, Disinfection
Standard Precautions

The practice of treating all blood, body fluids, and non-intact skin as potentially infectious, using gloves and barriers regardless of whether a client appears healthy.

Related: Pathogen, Personal Protective Equipment
Disinfection

Using an EPA-registered hospital-grade product on nonporous implements and surfaces to destroy most pathogenic organisms, excluding bacterial spores, after cleaning.

Related: Sterilization, Single-Use Item
Sterilization

A process that destroys all microbial life, including spores, typically through autoclave steam or heat; required only for items that penetrate skin or contact blood.

Related: Disinfection, Single-Use Item
Single-Use Item

A porous or disposable product such as a spatula, wax strip, or cotton pad that cannot be disinfected and must be discarded after one client.

Related: Disinfection, Double-Dipping
Double-Dipping

Reinserting a used applicator into a wax or product container, which contaminates the supply. Prohibited practice; use a fresh spatula each time or dispense to a secondary dish.

Related: Single-Use Item, Waxing
Personal Protective Equipment

Barriers worn to prevent exposure, such as nitrile gloves, safety glasses, and masks. Gloves are changed between clients and whenever torn or contaminated.

Related: Standard Precautions, Pathogen
Epidermis

The outermost avascular skin layer, composed mainly of keratinocytes, that provides the barrier against water loss, microbes, and irritants and renews itself continuously.

Related: Stratum Corneum, Keratinocyte
Dermis

The vascular middle layer containing collagen, elastin, nerves, glands, and hair follicles. It supplies nutrients to the epidermis and gives skin strength and elasticity.

Related: Sebaceous Gland, Fibroblast
Stratum Corneum

The outermost sublayer of the epidermis, made of flattened, keratin-filled dead cells embedded in lipids. It controls water loss and resists penetration of most products.

Related: Epidermis, Keratinocyte
Keratinocyte

The dominant epidermal cell type, which moves upward as it matures and eventually forms the protective, keratin-rich cells of the stratum corneum.

Related: Stratum Corneum, Epidermis
Sebaceous Gland

An oil-producing gland attached to hair follicles that secretes sebum, lubricating skin and contributing to acne when the follicle becomes blocked.

Related: Comedone, Dermis
Melanocyte

A cell in the basal epidermis that produces melanin pigment, which colors skin and helps shield it from ultraviolet radiation; uneven activity causes dark spots.

Related: Post-Inflammatory Hyperpigmentation, Epidermis
Comedone

A follicle blocked by sebum and dead cells; open comedones are blackheads and closed comedones are whiteheads. Extracting them is a core esthetic service.

Related: Sebaceous Gland, Acne
Skin Type

The baseline classification of skin as normal, dry, oily, or combination, based on oil production and hydration, which guides product and treatment selection.

Related: Skin Condition, Transepidermal Water Loss
Skin Condition

A temporary or persistent variation such as dehydration, acne, rosacea, or hyperpigmentation that is assessed separately from skin type and may modify or limit treatment.

Related: Skin Type, Contraindication
Transepidermal Water Loss

The passive evaporation of water through the stratum corneum; elevated loss signals a weakened barrier and results in tightness, flaking, and sensitivity.

Related: Stratum Corneum, Skin Type
Post-Inflammatory Hyperpigmentation

Darkening of skin after injury or inflammation, more common in deeper skin tones. Aggressive waxing, extractions, or peels can trigger or worsen it.

Related: Melanocyte, Contraindication
Contraindication

Any condition, medication, or circumstance that makes a service unsafe or inadvisable. Absolute contraindications require declining treatment; relative ones may allow modification with caution.

Related: Scope of Practice, Patch Test
Patch Test

Applying a small amount of product to a discreet area, such as behind the ear, to check for allergic reaction before a full treatment, especially with dyes or waxes.

Related: Contraindication, Sensitization
Informed Consent

A client's voluntary agreement to a service after being told its benefits, risks, alternatives, and aftercare. Documented consent protects both client and practitioner.

Related: Client Intake Form, Contraindication
Client Intake Form

A record of health history, medications, allergies, prior treatments, and skin concerns that supports safe service planning and provides documentation if a reaction occurs.

Related: Informed Consent, Contraindication
Manual Lymphatic Drainage

A light, rhythmic massage technique using gentle pressure toward lymph nodes to reduce facial puffiness and support fluid movement without stretching the skin.

Related: Effleurage, Facial Massage
Effleurage

A gliding massage stroke applied with light, even pressure in the direction of lymph flow, used to begin and end a facial massage and to apply product.

Related: Manual Lymphatic Drainage, Facial Massage
Desincrustation

A galvanic current technique that softens sebum and debris in follicles before extraction, commonly used on oily or congested skin during a facial.

Related: Comedone, Extraction
Extraction

Removing comedones or milia with gentle pressure using fingers wrapped in tissue or a comedone extractor, after softening the skin and only when not contraindicated.

Related: Comedone, Desincrustation
Anagen Phase

The active growth stage of a hair follicle, when hair is firmly anchored and waxing is most likely to break the hair rather than remove it cleanly.

Related: Telogen Phase, Waxing
Telogen Phase

The resting stage of the hair growth cycle, when the hair is loosely held and releases most easily; ideal timing for waxing because regrowth is slower.

Related: Anagen Phase, Waxing
Waxing

Hair removal by applying warm or hard wax to the skin and stripping it against hair growth, removing hair from the follicle. Requires careful temperature and skin checks.

Related: Double-Dipping, Telogen Phase
Sugaring

Hair removal with a paste of sugar, water, and lemon applied and removed against hair growth; water-soluble and often gentler on sensitive skin than wax.

Related: Waxing, Patch Test
Threading

Hair removal using twisted cotton thread rolled over the skin to catch and lift hairs, commonly used on brows and upper lip without wax or chemicals.

Related: Waxing, Eyebrow Architecture
Eyebrow Architecture

Shaping brows to balance the face using the brow bone, arch, and eye position as guides, measured before hair removal to preserve the client's natural symmetry.

Related: Threading, Patch Test
Patch Test

A small pre-service application of lash adhesive, tint, or dye on a hidden area to detect an allergic response before the full procedure.

Related: Sensitization, Contraindication
Sensitization

An allergic response that develops after repeated exposure to an ingredient, such as adhesive cyanoacrylate or paraphenylenediamine in tint, making future use unsafe.

Related: Patch Test, Allergen
pH Scale

A measure of acidity from 0 to 14, with 7 neutral. Skin sits near pH 4.5 to 5.5, and products far outside that range can disrupt the barrier.

Related: Acid Mantle, Exfoliation
Acid Mantle

The slightly acidic film of sebum and sweat on skin that helps suppress bacteria and maintain barrier function; alkaline cleansers can temporarily disrupt it.

Related: pH Scale, Stratum Corneum
Allergen

A substance that triggers an immune response in a sensitized person, causing redness, itching, or swelling; common examples include fragrance, nickel, and some preservatives.

Related: Sensitization, Patch Test
Exfoliation

Removing dead cells from the skin surface mechanically, with scrubs or brushes, or chemically, with acids or enzymes, to smooth texture and improve product absorption.

Related: pH Scale, Stratum Corneum
Professional Ethics

The standards of honesty, confidentiality, and respect that guide an esthetician's conduct, including refusing unsafe services and protecting client privacy.

Related: Informed Consent, Scope of Practice
Confidentiality

The duty to keep client health information, records, and personal details private, sharing them only as required by law or with the client's permission.

Related: Professional Ethics, Client Intake Form
Retail Sales

Recommending and selling home-care products that support treatment results; a legitimate revenue source when recommendations are honest and matched to the client's needs.

Related: Professional Ethics, Skin Type