NIC National Cosmetology Theory Examination (written theory component only) study guide
NIC National Cosmetology Theory Examination (written theory component only), administered by National-Interstate Council of State Boards of Cosmetology (NIC), is mapped here as 4 topic areas; the heaviest are Hair Care & Services (45%), Scientific Concepts (35%) and Skin Care & Services (10%).
About this course: Great at hair? Now pass the written - in plain English.
NIC National Cosmetology Theory Examination (written theory component only) at a glance
- Questions
- 110
- Time allowed
- 90 minutes
- Passing standard
- State-set cut score
- Format
- Computer-based multiple-choice (single best answer)
- Standard / edition
- CIB effective July 1, 2022
- Administered by
- National-Interstate Council of State Boards of Cosmetology (NIC)
Source: CIB effective July 1, 2022, National-Interstate Council of State Boards of Cosmetology (NIC). Confirm current details with the exam owner before you book.
Topic areas and weights
| Topic area | Weight | Concepts | Guide |
|---|---|---|---|
| Hair Care & Services | 45% | 14 | Topic page |
| Scientific Concepts | 35% | 9 | Topic page |
| Skin Care & Services | 10% | 0 | Section below |
| Nail Care & Services | 10% | 3 | Section below |
Topic guides at a glance
Hair Care & Services
45% of the course blueprint, 14 concepts. Emphasized: The cuticle must be opened for chemical services to work., The disulfide bond links two cysteine amino acids; breaking it forms cystine/cysteine. and A guide is the first cut section every other section is measured against..
Scientific Concepts
35% of the course blueprint, 9 concepts. Emphasized: Pathogenic bacteria come in three shapes: cocci, bacilli, spirilla., Salon tools are DISINFECTED, not sterilized; you must CLEAN before you disinfect. and Disinfectants used in salons must be EPA-registered, hospital-grade, and bactericidal, virucidal, and fungicidal..
Study plan in this course
- Hair Structure and Care — 12 cards · free
- Hair Cutting and Styling — 11 cards · free
- Chemical Texture and Color — 17 cards · full course
- Infection Control and Safety — 16 cards · full course
- Anatomy and Physiology — 7 cards · full course
- Chemistry and Safety — 5 cards · full course
- Skin Care and Services — 8 cards · full course
- Nail Care and Services — 9 cards · full course
Skin Care & Services
Skin Care & Services carries 10% of the NIC National Cosmetology Theory Examination (written theory component only) blueprint used in this course, the third-largest of its 4 weighted areas. The course teaches it in 1 study unit: Skin Care & Services.
Official references for Skin Care & Services
- [S4] Milady Standard Cosmetology
- [S11] Hair thermal-styling damage + decontamination-level corroboration
In the app this area comes with 8 memory cards and 8 module-quiz questions in the full course.
Nail Care & Services
Nail Care & Services carries 10% of the NIC National Cosmetology Theory Examination (written theory component only) blueprint used in this course, the 4th-largest of its 4 weighted areas. It spans 3 concepts. The course teaches it in 1 study unit: Nail Care & Services.
What Nail Care & Services covers
- Know the surrounding skin terms: cuticle, eponychium, hyponychium, and the nail folds/sidewalls. — [S4] Milady Standard Cosmetology
- Single-use nail items are discarded after one client; metal implements are disinfected. — [S5] EPA Selected EPA-Registered Disinfectants / List N program
- Never cut living tissue or service broken/infected skin; cutting it can cause infection. — [S4] Milady Standard Cosmetology + [S6] OSHA Bloodborne Pathogens 29 CFR 1910.1030
How Nail Care & Services connects to other areas
- Single-use nail items are discarded after one client; metal implements are disinfected. links to Single-use items are thrown away after one client; they cannot be disinfected. — Scientific Concepts
- Never cut living tissue or service broken/infected skin; cutting it can cause infection. links to Bloodborne pathogens spread through blood and body fluids; HBV is the hardiest. — Scientific Concepts
Official references for Nail Care & Services
- [S4] Milady Standard Cosmetology
- [S5] EPA EPA-Registered Disinfectants + [S8] EPA Preventing Pedicure Foot Spa Infections
- [S5] EPA Selected EPA-Registered Disinfectants / List N program
- [S4] Milady Standard Cosmetology + [S6] OSHA Bloodborne Pathogens 29 CFR: 1910.1030
- [S11] Hair thermal-styling damage + decontamination-level corroboration
- [S10] FDA / state-board basis
In the app this area comes with 9 memory cards and 9 module-quiz questions in the full course.
Details that change — checked against official sources
- CIB content edition: effective 2022-07-01, revised 2026-01-01 (current). Re-confirm the current CIB edition each build; NIC re-issues periodically. — [S1] prov-testing.github.io NIC CIB HTML official edition, retrieved 2026-06-14
Official references
- [S7] CDC Infection Control basics
- [S5] EPA EPA-Registered Disinfectants + [S7] CDC Infection Control basics
- [S5] EPA Selected EPA-Registered Disinfectants / List N program
- [S6] OSHA Bloodborne Pathogens + [S7] CDC Infection Control basics
- [S6] OSHA Bloodborne Pathogens 29 CFR 1910.1030 + Hazard Communication / SDS 29 CFR: 1910.1200
- [S9] OSHA Health Hazards in Nail Salons: Chemical Hazards + Formaldehyde/HazCom
- [S5] EPA EPA-Registered Disinfectants + [S8] EPA Preventing Pedicure Foot Spa Infections
- [S10] FDA / state-board basis
- [S4] Milady Standard Cosmetology
- [S11] Hair thermal-styling damage + decontamination-level corroboration
- [S4] Milady Standard Cosmetology + [S6] OSHA Bloodborne Pathogens 29 CFR: 1910.1030