Sectioning with the Airtouch Technique: Patterns for Different Densities

The study explored the Airtouch hair coloring technique, which uses controlled airflow instead of backcombing, focusing on how sectioning should be adapted for different hair densities (fine, medium, thick) to achieve optimal results. A mixed-methods approach revealed that factors like slice thickness (0.5–1.5 cm), section angle, airflow intensity, and developer volume need to be adjusted according to hair density to ensure natural blending, pigment longevity, and hair integrity. The study proposed a Density-Calibrated Airtouch Protocol (DCAP) to guide professional colorists, with implications for cosmetology education and research in trichology and cosmetic science.