WA Master Esthetician study plan

Differentiate AHA, BHA, and TCA agents by molecular size, lipophilicity, penetration depth, and typical concentration and pH ranges

Calculate and compare free-acid versus total-acid values for three sample peel formulations and explain how pH drives aggressiveness

Sequence a complete peel protocol end to end: pre-peel prep, degreasing, application order and timing, endpoint observation, neutralization or self-neutralization, and post-peel care

Distinguish clinically observable endpoints (blanching, erythema grades, frosting levels) and state the required response for each

Classify Fitzpatrick skin types I through VI using a verbal history and visual assessment, and predict peel and light-device response for each

Write three mock consultation transcripts that uncover at least two hidden contraindications per client (e.g., isotretinoin use, recent waxing, photosensitizing medication)

Map five adverse peel outcomes to their likely causes and the correct immediate and follow-up response

Justify peel selection and interval timing for four written case vignettes using skin type, concern, and lifestyle factors

Translate skin-analysis findings (hydration, sebum, barrier integrity, pore size, erythema) into specific ingredient and treatment recommendations

Explain the mechanism of surfactants, humectants, emollients, occlusives, and antioxidants, and match each class to a client presentation

Compare delivery formats (serum, emulsion, gel, mask) and predict how vehicle and pH affect active ingredient efficacy

Describe how preservative systems and packaging affect product stability and client safety

Explain wavelength, fluence, pulse duration, spot size, and selective photothermolysis, and predict how changing each variable alters tissue effect

Match chromophores (melanin, hemoglobin, water) to appropriate devices and IPL filter settings

Rank Fitzpatrick-based risk for pigmentary alteration across IPL, 1064 nm, 755 nm, 2940 nm ablative, and 1550 nm non-ablative systems

Explain how treatment depth of injury relates to expected downtime and healing timeline for non-ablative versus ablative approaches

Sequence a complete light-device safety protocol including eyewear selection, test spot, cooling, and post-treatment documentation

Apply the critical, semicritical, and noncritical instrument classification to 10 esthetics tools and assign the correct decontamination tier to each

Distinguish cleaning, disinfection, and sterilization, and identify which level of disinfectant is appropriate for each surface and tool in a treatment room

Describe standard hand hygiene, glove, and barrier routines and identify three common cross-contamination failures in a treatment room

Diagram the layers of the skin and label the primary function and cell type of each layer

Trace the keratinocyte life cycle and melanocyte function, and explain how each is disrupted by exfoliation and needling

Order the four phases of wound healing and predict how treatment depth shifts the timeline

Apply infection-control protocols specifically to peel, microneedling, and device treatments by identifying the break in barrier and the required precautions

Compare microneedling depth settings and needle configurations against indications, treatment areas, and skin types

List absolute and relative contraindications for microneedling and other advanced modalities, and state the reasoning behind each

Describe radiofrequency, ultrasound, LED, and dermaplaning in terms of mechanism, indication, and risk profile

Differentiate normal expected reactions from adverse events (prolonged erythema, PIH, infection, granuloma, scarring) and specify the referral trigger for each

Locate the Washington statutes and administrative rules governing esthetic licensure, sanitation standards, and scope of practice, and summarize what each requires of a practicing master esthetician

Distinguish tasks within and outside the master esthetician scope of practice across five sample scenarios, and justify each call

Apply ethical standards to confidentiality, informed consent, scope limits, and refusing or discontinuing a treatment

Integrate all nine domains by completing two full-length timed mock exams and correcting every error to a cited source