What type of hair treatment involves post-analysis to ensure suitability of products used?

The type of hair treatment that involves post-analysis to ensure the suitability of products used is the normal hair and scalp treatment. This process typically requires an assessment of the hair and scalp condition before and after the application of products. The post-analysis step is crucial because it allows the cosmetologist to evaluate how the hair and scalp have responded to the treatment and to confirm that the products used were effective and appropriate for the specific needs of the client. This careful evaluation helps ensure that any further treatments or care recommendations are tailored to the individual’s hair type and condition.

In contrast, thermal treatments mainly focus on using heat to style or alter the hair's structure and do not necessarily involve a thorough analysis of product suitability after application. Moisturizing treatments emphasize hydration and improving moisture balance in the hair but do not require in-depth post-treatment analysis. Deep conditioning treatments are designed to provide intensive moisture and nourishment but may not include a detailed assessment of the products used or their effectiveness on the hair and scalp. This makes normal hair and scalp treatment distinct in its emphasis on thorough evaluation throughout the treatment process.