Maine Barber Practice Exam 2026 - Free Barber Practice Questions and Study Guide

Collecting information about allergies and previous reactions is crucial before performing a chemical treatment, as this knowledge directly impacts the client's safety and the outcome of the service. Chemical treatments can involve strong substances that may cause adverse reactions in individuals with specific allergies or sensitivities, particularly to ingredients commonly found in hair dyes or relaxers.

Understanding a client's history of reactions helps barbers or stylists make informed decisions about which products to use and what precautions to take during the treatment. This is essential not just for achieving the desired results, but also for ensuring the client's well-being throughout the service.

While preferred hairstyle and length, hair growth rate, and products used at home can provide valuable insight into the client's aesthetic goals and maintenance preferences, they do not hold the same weight as health-related information when it comes to safely conducting chemical processes.