What does the term "porosity" refer to in hair analysis?

Porosity in hair analysis refers specifically to the hair's ability to absorb moisture. This characteristic is crucial for understanding how well hair can retain moisture and responds to treatments such as conditioning or coloring. Hair that has high porosity absorbs moisture quickly but may also lose it just as fast, which often results from damage or over-processing. Conversely, hair with low porosity takes longer to absorb moisture and can be more resistant to treatments.

Understanding porosity helps stylists choose suitable products and treatments for different hair types, ensuring optimal care and styling results. Therefore, recognizing that porosity relates to moisture absorption is vital for effective hair management and health.