Before a color service, what vital information should be gathered from the client?

Gathering information about the client's current hair color and past chemical treatments is crucial before performing a color service. Understanding the existing hair color allows the cosmetologist to assess what can be achieved, identify any potential challenges such as color build-up or underlying tones, and select the appropriate products and techniques for the desired outcome. Furthermore, knowledge of past chemical treatments helps to understand the hair’s condition, which is essential for preventing damage and achieving the best results.

The preferred hairstyle, while important, is more focused on the client's desired look rather than the technical aspects of color formulation. Hair type and texture, while relevant to some extent, do not provide enough insight into how the hair has been treated previously. Daily styling routine can offer some context about the client's habits and preferences but does not directly influence the chemical processes involved in hair coloring. Therefore, focusing on current hair color and past treatments directly impacts the safety and success of the color service.