What should be performed prior to any hair service?

Performing a hair and scalp analysis prior to any hair service is essential because it provides vital information about the condition of both the hair and the scalp. This analysis allows the cosmetologist to assess the hair's texture, porosity, and elasticity, as well as identify any scalp issues such as dryness, flakiness, or excessive oiliness. By understanding these factors, the cosmetologist can tailor the service to meet the specific needs of the client, ensuring optimal results and minimizing the risk of damage.

Additionally, conducting this analysis can help identify any contraindications that may require special consideration or adjustments to the service being provided. For example, if a condition like scalp sensitivity is detected, the professional may choose gentler products or techniques.

Other options, while they may be beneficial or necessary at different points in the service, do not take precedence over the analysis. Deep conditioning treatments and shampooing can be part of the overall hair care routine, but without first understanding the hair and scalp's unique conditions, these actions may not be as effective. Color application is a specialized service that should always be approached with a comprehensive understanding of the hair's condition to avoid unwanted results.