Delaware Barbering Practice Exam 2025 - Free Barbering Practice Questions and Study Guide

Using petroleum jelly is a standard practice to shield the skin from potential chemical burns during relaxer services. It acts as a barrier, preventing the strong chemicals in relaxers from coming into direct contact with the skin, which significantly reduces the risk of irritation and burns. The thick consistency forms a protective seal that keeps the chemical solutions at bay while allowing the relaxer to effectively work on the hair.

Other products like aloe vera gel, conditioner, or moisturizers do have beneficial properties for the skin but are not specifically designed to provide the same level of protection as petroleum jelly. Aloe vera gel, while soothing, may not create a sufficient barrier against the harsh chemicals used in relaxers. Conditioners and moisturizers are intended for hair care and skin hydration, rather than chemical protection, and therefore do not serve the particular function needed to protect skin during chemical treatments.