Licenses · Esta página en español
Cosmetology theory
Cosmetologists need a state license, and many state boards use the NIC written theory exam. It tests scientific concepts (infection control, chemistry, anatomy, skin and hair science) and hair, skin and nail services, with safety first.
Every state requires a license to work as a cosmetologist, earned by finishing an approved program and passing a written and a practical exam. U.S. Bureau of Labor Statistics, Occupational Outlook Handbook: Barbers, hairstylists, and cosmetologists, How to become one.
Practice and timed mocks are free, with right or wrong on every answer and your total score. The full analysis is $39, once.
How the exam is built
Owned by National-Interstate Council of State Boards of Cosmetology.
Cosmetology theory exam
100 scored questions (110 in total), 90 minutes, to pass: not published by the exam owner.
| Topic | Share |
|---|---|
| I. Scientific Concepts | 35% |
| II. Hair Care and Services | 45% |
| III. Skin Care and Services | 10% |
| IV. Nail Care and Services | 10% |
The official outline: www.msbcb.ms.gov/wp-content/uploads/2025/02/cosmetology_national_theory_english.pdf. Checked 2026-10-08.
Sources
- NIC National Cosmetology Theory Examination Candidate Information Bulletin (CIB), Cosmetology Theory Examination Content Outline, effective July 1, 2022, retrieved 2026-10-08.
Questions are original, written from the official outline and primary sources under an assessment framework designed by Julian Calvo, Ed.D., M.S. DecipherU is not affiliated with the National-Interstate Council of State Boards of Cosmetology or any state board. Every practice question is original and written from the official bulletin and federal safety sources.