Pennsylvania Cosmetology Practice Exam 2026 - Free Cosmetology Practice Questions and Study Guide

Wearing a barrier cream or petroleum jelly during chemical treatments is essential as it serves to protect the skin from potential irritation and chemical burns. These substances create a physical barrier on the skin, preventing direct contact between the harsh chemicals used in treatments and the skin's surface. This is particularly important in sensitive areas where the risk of irritation is higher, as it helps to maintain skin integrity and comfort during the procedure.

While face masks, latex gloves, and goggles provide important protection for other aspects of safety and hygiene—such as protecting the respiratory system from fumes, safeguarding the hands from chemical exposure, and preventing eye contact with irritants—they do not specifically address the need to protect the skin itself. Thus, barrier creams or petroleum jelly are the most appropriate choice for safeguarding the skin during chemical treatments.