What should a cosmetologist avoid during a chemical service?

During a chemical service, a cosmetologist should avoid overlapping products on previously treated hair because this can lead to serious damage. Overlapping occurs when a stylist applies the chemical treatment to hair that has already been processed, which can cause the hair to become over-processed. This not only compromises the hair’s structure, potentially leading to breakage and excessive dryness, but also disrupts the desired outcome of the chemical service. Each chemical treatment has a certain processing standard and applying new product to hair that has already been treated can exaggerate chemical reactions, resulting in undesired effects, such as changes in hair texture and color.

In contrast, applying products in layers, using heat protectants, and consulting with clients about products are all practices that typically enhance the safety and effectiveness of chemical services. Layering products can help achieve better results when done correctly, heat protectants offer additional protection for the hair against high temperatures, and consulting with clients promotes informed decisions about their hair treatments. These practices contribute positively to both the client’s experience and the health of the hair.