Red Seal Cosmetology Practice Exam 2026 - Free Cosmetology Practice Questions and Study Guide

Trichology is the correct answer because it specifically focuses on the study of hair and its related diseases and care. Dermatology (A) is the study of skin and its diseases, so while it may overlap with trichology, it is not as specific. Endocrinology (C) is the study of hormones and their effects on the body, which can play a role in hair health, but is not the primary focus of trichology. Histology (D) is the study of tissues and cells, which may include hair cells, but does not focus on hair specifically.