Washington Master Esthetics Practice Exam

In comparison to other treatment modalities, how does laser or IPL hair removal affect hair regrowth?

1. Regrowth is typically thicker

2. Regrowth can be finer and lighter

3. There is no regrowth

4. Regrowth increases the hair density

The correct answer is: Regrowth can be finer and lighter

Laser and Intense Pulsed Light (IPL) hair removal are both designed to target and damage hair follicles, which can significantly alter the characteristics of any hair that does regrow. The correct assertion about regrowth being finer and lighter comes from how these treatments affect hair in the anagen phase of the growth cycle. During the procedure, the energy from the laser or IPL is absorbed by the pigment in the hair, effectively damaging the follicle and impairing future growth. As a result, the hair that does manage to regrow tends to be weaker in structure, which means it can appear finer and lighter in color. This characteristic is important to note, especially for clients looking for a more permanent solution to hair removal. It highlights the effectiveness of laser and IPL treatments in comparison to other methods, such as shaving or waxing, where hair typically grows back at a similar thickness and density. Understanding this process helps clients set realistic expectations about the outcomes of their treatments and can inform decisions on whether these modalities are suitable for their hair removal needs.