KS Esthetician study materials
KS Esthetician study resources

KS Esthetician cheat sheet

KS Esthetician · Keep the key ideas within reach.

Quick reference

Infection Control, Sanitation, and Safety Practices

  • Kansas rules recognize three levels: sanitation (cleaning to remove visible debris), disinfection (chemical destruction of most pathogens on nonporous surfaces), and sterilization (destruction of all microbial life, including spores).

  • Disinfectant contact time is set by the manufacturer's label; a surface wiped dry before the labeled contact time has not been disinfected.

  • Porous items that contact blood or body fluids (nail files, cotton, wooden sticks, sponges) are single-use and must be discarded, not disinfected.

  • An EPA-registered hospital-grade tuberculocidal disinfectant is the benchmark for bloodborne pathogen exposure because mycobacteria are among the most resistant non-spore organisms.

  • Standard precautions treat all blood and body fluids as infectious; gloves are required for any service that may cause bleeding or contact non-intact skin.

  • Handwashing uses soap and running water for at least 20 seconds; alcohol-based sanitizer is not a substitute when hands are visibly soiled.

  • Implements must be cleaned of debris before immersion in disinfectant; organic matter inactivates many disinfectants.

  • Material Safety Data Sheets (now Safety Data Sheets under OSHA HazCom 2012) must be accessible for every chemical in the salon.

Quick reference

Anatomy and Physiology of the Skin

  • Epidermis layers deep to superficial: stratum basale (germinativum), stratum spinosum, stratum granulosum, stratum lucidum (palms and soles only), stratum corneum.

  • Keratinocytes migrate from the basal layer and are shed from the corneum; turnover is roughly 28 days in young adults and slows with age.

  • Melanocytes in the basal layer produce melanin via tyrosinase; melanosomes are transferred to keratinocytes, giving even distribution in healthy skin.

  • The dermis contains collagen (tensile strength), elastin (recoil), glycosaminoglycans such as hyaluronic acid (hydration), fibroblasts, mast cells, and blood vessels.

  • The hypodermis (subcutaneous layer) is adipose and fascia; it insulates, cushions, and anchors the skin to underlying structures.

  • Sebaceous glands secrete sebum, are largest on the face, scalp, and upper back, and are stimulated by androgens.

  • Eccrine sweat glands regulate temperature and are widespread; apocrine glands are limited to axillae and groin and become active at puberty.

  • Skin barrier function resides mainly in the stratum corneum: corneocytes plus intercellular lipids (ceramides, cholesterol, fatty acids) in a brick-and-mortar arrangement.

Quick reference

Skin Analysis, Conditions, and Disorders

  • Fitzpatrick types I–VI grade sun reactivity; type I always burns and never tans, type VI is deeply pigmented and rarely burns.

  • Oily skin shows enlarged pores, shine, and comedones; dry skin shows flaking, tightness, and fine lines; combination skin has an oily T-zone with normal or dry cheeks.

  • Sensitive skin is characterized by reactivity (stinging, erythema) rather than by oil level; it can coexist with any skin type.

  • Contraindications to treat: active infection, open lesions, recent chemical peel or laser, sunburn, waxing over isotretinoin use, and undiagnosed pigmented lesions.

  • The ABCDE rule for pigmented lesions: Asymmetry, Border irregularity, Color variation, Diameter over 6 mm, Evolving change - refer, do not treat.

  • Comedones are noninflammatory; papules, pustules, and nodules are inflammatory acne lesions and should not be extracted.

  • Telangiectasia and rosacea are vascular conditions; heat, friction, and vasodilating products can aggravate them.

  • Seborrheic keratoses are benign, waxy, stuck-on growths; any lesion that bleeds, crusts, or changes should be referred to a physician.

Quick reference

Client Consultation, Contraindications, and Documentation

  • A consultation record includes medical history, medications, allergies, prior cosmetic procedures, skin care regimen, and the client's stated goals.

  • Isotretinoin (Accutane) use within the past 6–12 months contraindicates waxing and aggressive exfoliation because skin is fragile and may tear.

  • Pregnancy and breastfeeding warrant avoiding high-dose retinoids, salicylic acid in large areas, and certain essential oils; refer to a physician for guidance.

  • Photosensitizing medications (tetracyclines, some diuretics, isotretinoin) increase risk with peels, lasers, and intense light.

  • Informed consent must be obtained before any service and documented with the date, service performed, products used, and any reactions.

  • Client records are confidential; release requires written client authorization or a legal requirement such as a court order.

  • Patch testing is indicated for clients with known sensitivities, particularly to waxes, adhesives, and chemical peels.

  • Adverse reactions must be recorded objectively (what was observed, when, and action taken) and the client referred for medical care when appropriate.

Quick reference

Facial Treatments, Cleansing, Exfoliation, and Extractions

  • Standard facial sequence: consultation and skin analysis, cleansing, exfoliation, steam or warm towel, extractions, massage, mask, toning, moisturizing, sun protection.

  • Cleansers are selected by skin type: gel or foaming for oily, cream or milky for dry and mature, and gentle non-foaming for sensitive skin.

  • Physical exfoliants use friction (scrubs, brushes); chemical exfoliants use alpha hydroxy acids (glycolic, lactic) or beta hydroxy acid (salicylic).

  • Salicylic acid is lipid-soluble, penetrates follicles, and is preferred for oily and comedonal skin; AHAs are water-soluble and act on the surface.

  • Extraction is limited to mature comedones with visible open pores; use gentle pressure with fingers wrapped in tissue or a metal extractor, and stop if tissue tears.

  • Steam softens sebum and loosens comedones; keep the vapor at a comfortable distance and limit exposure for clients with rosacea or sensitive skin.

  • Masks are chosen by function: clay for oil absorption, hydrating gel or sheet masks for moisture, and calming masks for reactive skin.

  • Sunscreen at the end of every daytime facial is required because exfoliation increases photosensitivity.

Quick reference

Massage Techniques and Advanced Esthetic Services

  • Effleurage is gliding, light-to-firm stroking used to begin and end a massage and to link other movements.

  • Petrissage covers kneading, rolling, and squeezing of tissue; tapotement is rhythmic percussion; friction and vibration are deeper localized techniques.

  • Facial massage strokes generally follow lymphatic drainage from the center of the face outward and downward to the cervical nodes.

  • Massage is contraindicated over inflamed acne, active infection, recent surgery, or undiagnosed swelling.

  • Chemical peels are classified by depth: superficial (stratum corneum to papillary dermis), medium (papillary to upper reticular), and deep (reticular dermis).

  • Superficial peels use AHAs, BHAs, or low-percentage TCA; client preparation with retinoids or acids increases penetration and risk.

  • Microdermabrasion uses mechanical exfoliation with a crystal or diamond tip; it is contraindicated over active acne, rosacea flares, and recent isotretinoin use.

  • LED therapy: blue light targets acne bacteria, red light is used for calming and collagen support; eye protection is required for all light devices.

Quick reference

Hair Removal (Waxing, Sugaring, and Threading)

  • Hair growth stages: anagen (active growth, best for waxing), catagen (transition), and telogen (resting); waxing removes hair with the bulb when it is in anagen.

  • Hair should be about 1/4 inch (6 mm) long for wax to grip; trim longer hair before waxing.

  • Wax is applied in the direction of hair growth and removed against it, holding skin taut to reduce trauma.

  • Hard wax is applied thicker, hardens without strips, and is preferred for facial and sensitive areas; soft wax requires strips.

  • Contraindications: isotretinoin use, recent chemical peel or laser, sunburn, active infection, varicose veins, and diabetes with poor circulation (physician clearance).

  • Sugaring uses a sugar, lemon, and water paste applied and removed against the hair growth direction; it is water-soluble and applied at room temperature.

  • Threading uses twisted cotton thread to trap and lift hair; it is suitable for brows and upper lip and requires no wax or heat.

  • Double-dipping wax sticks or spatulas contaminates the pot and is prohibited; use a fresh applicator per client.

Quick reference

Makeup Application and Lash and Brow Services

  • Foundation shade is matched to the jawline and neck in natural light, not to the hand or wrist.

  • Undertone categories: warm (yellow, golden, peach), cool (pink, red, blue), and neutral; foundation should match undertone as well as depth.

  • Face shapes guide contouring: oval is balanced; round is softened with vertical shading; square is softened at the jaw corners; heart is shaded at the temples.

  • Eyeshadow placement follows the eyelid crease; hooded lids need placement above the crease to remain visible when the eye is open.

  • Lash extensions require a patch test, isolated natural lashes, and adhesive applied 1–2 mm from the eyelid; never glue lashes to the skin.

  • Lash lift and tint services require a patch test 24–48 hours prior and are contraindicated with eye infections, recent eye surgery, or lash loss conditions.

  • Brow mapping uses three points: the start at the inner corner, the arch at the outer iris line, and the tail at the outer corner.

  • All eye-area implements and adhesives must be sanitized or single-use; mascara and lash adhesive are never shared between clients.

Quick reference

Chemistry, Product Ingredients, and Product Selection

  • pH scale is 0–14; skin surface averages about pH 4.5–5.5, and products far outside that range can disrupt the acid mantle.

  • Alpha hydroxy acids include glycolic (smallest molecule, strongest penetration), lactic, malic, and tartaric; beta hydroxy acid is salicylic acid.

  • Retinoids bind retinoic acid receptors to increase cell turnover; they cause photosensitivity and are contraindicated in pregnancy.

  • Antioxidants such as vitamin C (L-ascorbic acid), vitamin E, and ferulic acid neutralize free radicals; vitamin C is unstable and degrades with light and oxygen.

  • Humectants attract water (glycerin, hyaluronic acid); emollients soften and smooth (oils, esters); occlusives prevent water loss (petrolatum, dimethicone).

  • Surfactants have a hydrophilic head and lipophilic tail; they lift oil and debris so it can be rinsed away.

  • Emulsions combine oil and water with an emulsifier; oil-in-water emulsions feel lighter, water-in-oil emulsions are richer and more occlusive.

  • Fragrance and essential oils are common sensitizers; patch testing and minimal ingredient lists reduce reaction risk for sensitive clients.

Quick reference

Kansas Cosmetology Law, Rules, and Professional Ethics

  • Kansas licenses estheticians through the Kansas Board of Cosmetology; a license is required to perform services for compensation.

  • License renewal and continuing education requirements are set by the Kansas Board of Cosmetology and published in its statutes and regulations (K.S.A. 65-1901 et seq.).

  • Salon licenses and individual licenses must be displayed; the Board conducts inspections and may suspend or revoke a license for violations.

  • Estheticians may perform skin care services within their scope; medical procedures such as injectables and laser resurfacing are reserved for licensed medical professionals.

  • Sanitation and disinfection standards are prescribed by Board rules; violations are grounds for discipline.

  • Client records and personal information are confidential; disclosing them without consent is an ethical and legal violation.

  • Advertising must not claim medical results or cures; scope-of-practice claims must match the license held.

  • Professional ethics require informed consent, honest disclosure of services and pricing, and referral to a physician when a condition is outside esthetic scope.