12.1 Skin Analysis, Fitzpatrick Typing, Esthetic Equipment & Client Records
Key Takeaways
- Skin analysis separates skin type, which is genetically determined by sebaceous activity and is relatively stable, from skin condition, which is changeable and driven by environment, products, hormones and health.
- The Fitzpatrick scale classifies skin I through VI by its response to ultraviolet exposure, and higher phototypes carry a greater risk of post-inflammatory hyperpigmentation from aggressive exfoliation, waxing or heat.
- Esthetic equipment splits into the same NIC classes as salon tools: equipment such as the facial chair, magnifying lamp, steamer and wax pot; implements such as tweezers, extractors and brushes; and supplies such as creams, masks, towels and head coverings.
- Wis. Admin. Code Cos 4.01(8) requires licensees using lancets for the lateral piercing of raised whiteheads to use only pre-sterilized, single-use, disposable lancets.
- A skin client record documents the intake and health history, medications including isotretinoin and topical retinoids, products used, treatment performed, the client's response, and home care recommended.
12.1 Skin Analysis, Fitzpatrick Typing, Esthetic Equipment & Client Records
Quick Answer: Analysis answers three questions before a product is opened: what type is this skin (genetic, stable), what condition is it in today (changeable), and what contraindications are present? Add the Fitzpatrick phototype to calibrate how aggressive the treatment may be, document all of it in a client record, and select equipment you can decontaminate under Wis. Admin. Code Cos 4.01.
1. Type Versus Condition — the Distinction the Exam Tests
Skin type is determined largely by genetics and by how much sebum the sebaceous glands produce. It changes slowly, if at all.
| Type | Sebum activity | Visible signs |
|---|---|---|
| Dry (alipidic) | Under-produces sebum | Small pores, tight feel, flaking, fine lines appear early |
| Normal (eudermic) | Balanced | Even texture, small to medium pores, no persistent shine |
| Oily (lipidic) | Over-produces sebum | Enlarged pores, shine within hours, comedone-prone |
| Combination | Oily centre panel, drier periphery | Shine across forehead, nose and chin; drier cheeks |
Skin condition is what is happening to that skin now, and it is changeable: dehydration (lack of water, not oil — and it occurs on oily skin too), sensitivity, acneic, couperose, hyperpigmented, mature, sun-damaged.
Exam Trap: dry versus dehydrated. Dry skin lacks oil and is a type. Dehydrated skin lacks water and is a condition that can sit on top of any type — including oily skin, which is why an oily client can present with tightness and fine surface lines.
2. A Structured Analysis Protocol
- Intake and health history. Medications, recent procedures, allergies, pregnancy, known sensitivities. Two entries change the whole service: oral isotretinoin within the past 6 to 12 months and topical tretinoin or other retinoids in current use both contraindicate waxing and aggressive exfoliation.
- Cleanse. Analysis on unwashed skin reads makeup and the day's sebum, not the skin.
- Inspect under magnification. A magnifying lamp reveals comedones, milia, dilated capillaries, texture and pigmentation invisible to the naked eye. Cover the client's eyes.
- Palpate. Touch reveals what sight cannot: congestion, roughness, temperature, tissue laxity.
- Assess pore size and T-zone behaviour to establish type; assess hydration, sensitivity and pigmentation to establish condition.
- Assign a Fitzpatrick phototype.
- Screen contraindications and decide. Proceed, modify, or decline and refer.
- Record everything.
3. The Fitzpatrick Scale and What It Changes
The Fitzpatrick scale classifies skin by its response to ultraviolet exposure, from I to VI:
| Type | Typical response to UV |
|---|---|
| I | Always burns, never tans |
| II | Burns easily, tans minimally |
| III | Burns moderately, tans gradually |
| IV | Burns minimally, tans easily |
| V | Rarely burns, tans profusely |
| VI | Never burns, deeply pigmented |
The practical consequence is about melanocyte reactivity, not about which skin is "tougher." Higher phototypes have melanocytes that respond vigorously to inflammation, so any injury — an aggressive peel, over-heated wax, a hot towel, excessive extraction pressure — can trigger post-inflammatory hyperpigmentation (PIH) that outlasts the original insult by months. On Fitzpatrick IV to VI, reduce aggressiveness, patch test, and build tolerance across a series rather than in one appointment. Lower phototypes burn and photodamage more readily, so sun protection counselling is the priority there.
Exam Trap: Fitzpatrick is not a colour chart. It classifies UV response, which is why the descriptors are all about burning and tanning behaviour rather than complexion shade.
4. Esthetic Equipment, Implements and Supplies
| Class | Items | Handling |
|---|---|---|
| Equipment | Facial chair or bed, magnifying lamp, steamer, hot towel cabinet, wax pot, galvanic and high-frequency units, LED panels | Cos 4.01(7): clean to sight and touch; disinfect anything contacting skin; distilled water only in the steamer |
| Implements | Tweezers, comedone extractors, spatulas, fan and mask brushes, lancets | Cos 4.02 cycle: clean, disinfect, air-dry, cover. Cos 4.02 expressly excludes tweezers used in electrolysis from the general tweezer rule |
| Supplies and materials | Cleansers, creams, masks, wax, towels, head coverings, cotton, gauze, gloves | Cos 4.01(3r): single-use items disposed of after each use; Cos 4.01(4): liquids, creams, powders and semi-solids dispensed so the unused portion is not contaminated |
Three Wisconsin rules bear directly on esthetic work:
- Cos 4.01(8): licensees using lancets for the lateral piercing of raised whiteheads shall use only pre-sterilized, single-use, disposable lancets. There is no cleaning-and-reuse pathway for a lancet.
- Cos 4.01(4): never return product from a client's face to the jar, and never dip fingers into a container — dispense with a clean spatula or pump.
- Cos 4.04: establishments must supply licensees with at least one approved antiseptic, bandages and disposable gloves.
And the two rules that most often produce a citation in esthetics practice: never double-dip a wax applicator, and remember that Cos 4.08 governs waxing specifically.
5. The Client Record
A skin client record is both a treatment tool and the practitioner's evidence of the standard of care. It should carry:
| Field | Why it matters |
|---|---|
| Intake and health history, updated each visit | Medications and conditions change; isotretinoin use may begin between appointments |
| Skin type, condition and Fitzpatrick phototype | Establishes the baseline against which change is measured |
| Products and concentrations used, with timings | Lets a reaction be traced to a specific agent |
| Treatment performed and client response | Documents tolerance and guides escalation across a series |
| Any adverse reaction, and the action taken | The single most important entry if a complaint follows |
| Home care recommended | Half of any result is what happens between appointments |
| Consent, where required | Cos 2.025(2r) requires written consent for exempt microdermabrasion, covering the nature of the procedure, its risks and the client's acknowledgment |
Records are confidential client health information. Store them securely and do not discuss a client's skin in front of others — a discretion requirement that also underlies the private, unannounced refusal required when you encounter a contraindication under Cos 2.02.
How does skin type differ from skin condition in a professional analysis?
What does the Fitzpatrick scale classify, and what practical adjustment does a higher phototype require?
Under Wis. Admin. Code Cos 4.01(8), what requirement applies to lancets used for the lateral piercing of raised whiteheads?
An esthetician scoops cream from a jar with gloved fingers, applies it, and returns the unused portion to the jar. Which Wisconsin rule does this breach?