How does hair's porosity affect chemical services?

High porosity hair is characterized by a cuticle layer that is either damaged or has gaps, which allows for greater absorption of moisture and chemicals. This structural condition means that when chemical services like coloring, perming, or relaxing are applied, high porosity hair can absorb these chemicals rapidly. This can lead to faster and more intense results, which can sometimes be beneficial during treatments but may also increase the risk of damage if not monitored properly.

Conversely, low porosity hair has a more compact cuticle layer, making it more resistant to penetration by chemicals. This means that treatments may take longer to show results on low porosity hair, as the cuticles are less likely to allow the chemicals to penetrate effectively.

Understanding these differences is crucial for cosmetologists to tailor their techniques according to the hair type, ensuring optimal results while minimizing damage.