HI Cosmetology study materials
HI Cosmetology study resources

HI Cosmetology study plan

HI Cosmetology · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Barbering

  • Map the Barbering domain blueprint into a one-page checklist of every content area you must cover

  • Define and correctly spell 30 barbering vocabulary terms (hair structure, growth cycles, density, porosity, texture) without notes

  • Label the parts of the hair shaft and follicle and explain the anagen, catagen, and telogen phases in your own words

  • Distinguish the five basic hair types and identify at least two service implications of each

Your checkpoint

A one-page barbering blueprint checklist plus a 30-term flashcard set scored at 90% or better on a self-quiz

Week 2

Barbering

  • Compare the three growth cycles by duration and what each means for cutting, relaxing, and coloring decisions

  • Explain the pH scale and classify shampoos, conditioners, and chemical products by acidity and alkalinity

  • Identify the layers of the skin and describe how skin conditions (dandruff, seborrhea, tinea) affect service eligibility

  • List which scalp and skin conditions are contraindications for barbering services

Your checkpoint

A two-column chart of treatable versus non-treatable scalp conditions with the correct referral action for each

Week 3

Barbering

  • Demonstrate the four basic haircutting sections, subsectioning, and elevation angles using your own written diagrams

  • Match each of the four basic haircut forms (solid, graduated, increase-layer, uniform-layer) to its elevation and finger position

  • Write the step-by-step procedure for a clipper cut and a shear-over-comb cut, including tool selection and safety checks

  • Explain the difference between a taper, a fade, and a bald fade and where each guideline starts

Your checkpoint

A four-page haircut procedure manual with drawn sectioning diagrams for each basic form

Week 4

Barbering

  • Sequence the steps of a shave (preparation, lather, stroke direction, finishing) and justify each step

  • Explain the chemistry of lather and the role of warm towels, astringents, and after-shave products

  • Describe beard and mustache design principles including face-shape analysis and symmetry

  • Identify the safety and sanitation rules for razors, clippers, and shears under Hawaii board standards

Your checkpoint

A timed mock walkthrough of a complete shave and beard design written as a step list, then self-scored against a 20-point sanitation rubric

Week 5

Cosmetology (Beauty Operator)

  • Build a cosmetology blueprint checklist covering hairstyling, chemical texture, color, skin, nails, and makeup

  • Define 40 cosmetology vocabulary terms (oxidation, reduction, developer, porosity, undertone) and use each in a sentence

  • Explain the chemistry of permanent waving and relaxing, including the role of thioglycolate, hydrogen bonds, and neutralizer

  • Describe the structure of the nail and the layers of the skin as they apply to cosmetology services

Your checkpoint

A 40-term cosmetology glossary with definitions and one original example sentence per term

Week 6

Cosmetology (Beauty Operator)

  • Explain the law of color, the color wheel, and how to formulate a filler or correct an unwanted tone

  • Calculate developer volume, processing time, and mixing ratios for at least five given coloring scenarios

  • Differentiate temporary, semipermanent, and permanent color by molecule size and penetration

  • Describe patch testing, strand testing, and the client consultation steps before any chemical service

Your checkpoint

Five worked color-formulation problems with correct answers and a written explanation of each calculation

Week 7

Barbering & Cosmetology (Beauty Operator)

  • Produce a side-by-side comparison of barbering versus cosmetology scope of practice in Hawaii, including what each license may and may not perform

  • Explain infection control levels (sanitation, disinfection, sterilization) and pick the correct level for ten listed tools

  • Describe Hawaii board rules on licensing, sanitation inspections, and client record keeping as they apply to both licenses

  • Review your two blueprint checklists and mark every weak area with a study action

Your checkpoint

A one-page scope-of-practice and infection-control reference sheet covering both licenses, checked against your own notes

Week 8

Barbering & Cosmetology (Beauty Operator)

  • Take two full-length timed practice tests and log every missed question by domain and subarea

  • Re-teach your ten weakest subareas in writing, one paragraph each, without notes

  • Drill 100 mixed flashcards daily until you score 90% or higher on two consecutive runs

  • Write a test-day plan covering timing per question, guessing strategy, and what to bring

Your checkpoint

A scored error log from two practice tests showing at least 85% overall and 80% or better in each domain

Milestones

Week 2: Score 85% or higher on a self-made 40-question barbering quiz on hair and scalp science

Week 4: Complete the barbering procedure manual and pass a 50-question mixed barbering practice set at 80% or higher

Week 6: Complete the cosmetology glossary and score 80% or higher on a 50-question cosmetology practice set

Week 8: Achieve 85% overall and 80% per domain on two full-length timed practice tests