Pennsylvania Esthetician State Board Practice Exam

What method of hair removal involves inserting a small needle into each hair follicle?

1. Laser Hair Removal

2. Waxing

3. Electrolysis

4. Threading

The correct answer is: Electrolysis

The method of hair removal that involves inserting a small needle into each hair follicle is electrolysis. This technique works by using an electric current to destroy the hair root within the follicle. A fine needle, which is inserted into the follicle, delivers the electrical current directly to the hair bulb, effectively inhibiting future hair growth from that follicle. Electrolysis is the only FDA-approved method for permanent hair removal, making it a reliable choice for individuals seeking long-lasting results. It is suitable for all skin types and hair colors, which adds to its versatility. The other methods mentioned do not utilize this needle insertion technique. Laser hair removal, for example, uses concentrated light to target and damage hair follicles, causing them to enter a state of dormancy without the direct connection provided by a needle. Waxing removes hair from the root but does not destroy the follicle, and threading restrains the hair and pulls it out without penetrating the skin. These differences highlight why electrolysis is uniquely effective through the precise application of energy to each individual hair follicle.