ITEC Beauty Specialist key terms

A client's voluntary agreement to a treatment after being told what it involves, the expected results, the risks, alternatives, and their right to stop at any time. It must be documented before work begins.

The professional obligation to act in the client's best interests, work within your training and competence, and avoid foreseeable harm. It includes refusing or stopping a treatment when continuing would be unsafe.

The treatments and techniques a practitioner is trained, qualified, and legally permitted to perform. Working outside it, such as diagnosing a skin lesion or prescribing medication, breaches professional and legal boundaries.

Keeping a client's personal details, health information, and treatment records private and sharing them only with the client's permission or where the law requires disclosure. Records should be stored securely and accessed only by authorised staff.

The written or electronic form capturing a client's history, medications, allergies, skin observations, treatment plan, products used, consent, and outcomes. It provides continuity between visits and is the main evidence that professional standards were followed.

Any condition, medication, or circumstance that makes a treatment inadvisable, either completely (absolute) or with adjustments (relative). Examples include active infection, recent isotretinoin use, or broken skin over the treatment area.

A small controlled application of a product, usually on the inner forearm or behind the ear, to check for an allergic reaction before full treatment. Results are read after the manufacturer's stated interval, commonly 24 to 48 hours.

The transfer of microorganisms from one person, surface, or object to another, for example via unwashed hands, shared tools, or a contaminated product pot. It is prevented by hand hygiene, single-use items, and disinfecting tools between clients.

Using a chemical agent to reduce the number of pathogenic microorganisms on surfaces and tools to a level considered safe. It does not reliably destroy bacterial spores, so it is not the same as sterilisation.

A process that destroys all microorganisms, including bacterial spores and viruses, on reusable tools. It typically requires an autoclave or approved heat or chemical method and is essential for items that may contact blood.

The safe handling and discarding of needles, blades, and other sharp items into a rigid, puncture-resistant, correctly labelled container. Sharps must never be recapped by hand or placed in general waste.

A product or tool designed to be used on one client only and then discarded, such as disposable spatulas, cotton pads, or lash applicators. Reusing it risks cross-contamination and is not acceptable practice.

The outermost, avascular layer of the skin, made of stratified keratinocytes that constantly renew from the basal layer. Its barrier function limits water loss and blocks microorganisms and irritants.

The layer beneath the epidermis containing collagen and elastin fibres, blood vessels, nerves, glands, and hair follicles. It provides strength, elasticity, sensation, and nourishment to the epidermis.

The outermost sublayer of the epidermis, composed of flattened, keratin-filled cells embedded in lipid. It is the main barrier to water loss and the target of exfoliation and moisturising products.

The skin's ability to keep water in and irritants, allergens, and microbes out, largely due to the stratum corneum and its lipid matrix. It is weakened by over-exfoliation, harsh cleansers, and some skin conditions.

A gland attached to a hair follicle that secretes sebum onto the skin surface. Sebum lubricates skin and hair, and overactivity contributes to oiliness and comedone formation.

The pigment produced by melanocytes that gives skin, hair, and eyes their colour and helps protect against ultraviolet radiation. Its uneven production can cause pigmentation marks and affects response to treatments such as peels and waxing.

A cell in the basal layer of the epidermis that produces melanin and transfers it to surrounding keratinocytes. Its activity increases with ultraviolet exposure, causing tanning and sometimes uneven pigmentation.

A structured assessment of the client's skin using observation, questioning, and sometimes palpation or a magnifying lamp. It identifies skin type, condition, and areas of concern to guide product and treatment selection.

The largely inherited classification of skin as normal, dry, oily, or combination, based on sebum production and moisture levels. It is distinct from a skin condition, which is a temporary or treatable state.

A tendency for skin to react with redness, stinging, itching, or tightness to products, friction, heat, or environmental factors. Sensitive skin requires gentler products, patch testing, and reduced treatment intensity.

An ultraviolet lamp used during skin analysis to reveal conditions such as dehydration, thickened keratin, or bacterial and fungal fluorescence. It supports assessment but does not replace diagnosis by a medical professional.

Directing a client to an appropriate medical or specialist professional when a condition is outside your scope, such as a suspicious mole, persistent rash, or suspected infection. The reason and action should be recorded.

A blocked hair follicle filled with sebum and dead skin cells, appearing as an open blackhead or a closed whitehead. Extraction and product choice must respect skin condition and infection risk.

Removal of dead cells from the skin surface by mechanical means such as scrubs and brushes, or chemical means such as alpha hydroxy acids and enzymes. Overuse damages the barrier and can cause irritation or pigmentation.

Redness of the skin caused by increased blood flow, as seen after massage, waxing, or irritation. Persistent or severe erythema should prompt treatment to stop and review of the cause.

Darkened skin that develops after inflammation or injury, such as a burn, picking, or aggressive waxing, especially in deeper skin tones. Prevention focuses on gentle technique, sun protection, and avoiding further trauma.

A classification of skin by its tendency to burn or tan in sunlight, commonly the Fitzpatrick scale from I to VI. It guides safe selection of wax temperature, laser settings, and sun-protection advice.

A smooth, gliding massage stroke performed with light to firm pressure, used to apply product and warm tissue. It usually begins and ends a body massage sequence and flows toward the heart on limbs.

A group of massage movements involving kneading, squeezing, and rolling of soft tissue to release tension and improve circulation. It is applied to fleshy areas such as the back, shoulders, and thighs.

A condition in which massage must be avoided or modified, such as fever, acute inflammation, thrombosis, uncontrolled hypertension, or recent injury. Some cases require medical clearance before treatment.

The repeating phases of hair growth: anagen (active growth), catagen (transition), and telogen (rest and shedding). Waxing works best when hair is in anagen, and the cycle explains regrowth timing and patchiness.

A hair removal method using warm or hot wax applied in the direction of hair growth and removed against it, pulling hair from the follicle. Correct temperature, skin tension, and aftercare reduce burns and breakage.

A hair removal technique in which twisted cotton thread is rolled over the skin to catch and lift hairs from the follicle. It is precise for shaping brows and suits many clients, though it can cause temporary redness.

A semi-permanent dye applied to the lashes to darken them, requiring a patch test and careful protection of the eye. It must not be used with products not approved for the eye area.

Application of a suitable dye to the brow hairs to enhance shape and colour. The skin around the brow should be protected, timing must be controlled, and a patch test is required beforehand.

A treatment that curls and lifts natural lashes using a lifting lotion, setting lotion, and sometimes a tint. Correct processing time and isolation of lashes prevent over-processing and damage.

The visible hard keratin structure covering the nail bed, produced by the matrix and protected by the cuticle and nail folds. Its condition reflects health and technique, and excessive filing can thin it.

The tissue at the base of the nail that produces new nail cells, visible partly as the lunula. Damage to the matrix can cause permanent ridges, splitting, or distortion of nail growth.

The thin layer of dead skin sealing the base of the nail plate where it meets the skin. It protects against infection and should be softened and gently pushed back, never cut aggressively.

Separation of the nail plate from the nail bed, leaving a white or hollow area. It can follow trauma, aggressive filing, or infection, and is a reason to avoid further nail work until assessed.

Inflammation or infection of the skin around the nail, causing redness, swelling, and pain. It is often linked to cuticle damage or moisture, and active infection is a contraindication for nail services.

The principles of how colours combine and contrast, including primary, secondary, and complementary colours and warm versus cool tones. It guides foundation matching, concealer choice, and harmonious makeup design.

Selecting a base product whose shade and undertone blend with the client's natural skin, tested on the jawline in natural light. The aim is an even finish without a visible line at the hairline or neck.

A pigmented product used to cover blemishes, redness, or under-eye darkness with a small amount of targeted product. Its shade and texture should suit the area and sit well under or over foundation.