Colorado Cosmetology Written Practice Exam

Inserting a single needle into a hair follicle for hair removal is called:

1. Photoepilation

2. Electrocoagulation

3. Laser treatment

4. Thermolysis

The correct answer is: Photoepilation

Inserting a single needle into a hair follicle for hair removal is called photoepilation, which is the process of using light or heat to damage the hair follicle and prevent future hair growth. Options B, C, and D are all alternative methods of hair removal, but they involve different techniques such as the use of electricity, lasers, or heat to destroy the hair follicles. These methods may also target multiple hairs at once, rather than inserting a single needle into each individual hair follicle. Therefore, they are not considered to be single-needle hair removal techniques and are not the correct answer for this question.