Utah Master Esthetician Practice Exam

Which ethnicity tends to have the thickest hair growth and deepest root systems?

1. African American

2. Asian

3. Caucasian

4. Hispanic

The correct answer is: African American

The belief that African American hair tends to have the thickest hair growth and deepest root systems is informed by the unique structural characteristics of the hair. This hair type is often coiled or tightly curled, resulting in a thicker appearance. Additionally, the anatomy of the hair follicle in individuals of African descent typically features a more oval or elliptical shape, contributing to its robust and voluminous texture. Moreover, this hair structure has implications for how hair grows and its ability to retain moisture, which can be beneficial for preventing breakage. Understanding this characteristic is essential, especially in esthetics, because it informs hair care treatments and products that would be most suitable, ensuring optimal results while maintaining the health of the hair. While other ethnicities may have different hair types—Asian hair, for example, is often straight and round in cross-section, leading to a sleek appearance—African American hair's unique structure clearly sets it apart in terms of thickness and root depth.