What type of product is used to correct excessive porosity in hair?

Fillers are specifically designed to correct excessive porosity in hair. When hair is overly porous, it can absorb too much moisture and lose its natural oils, leading to dryness and damage. Fillers work by depositing a lightweight film on the hair shaft, which helps to even out the porosity. This creates a more uniform surface that improves the hair's ability to hold color and moisture, making it healthier and more resilient.

While conditioners and moisturizers provide hydration, they do not specifically address the problem of uneven porosity. Colorants are meant for adding or changing the color of hair rather than correcting structural issues. By using fillers, hairstylists can ensure that the hair is in optimal condition for any further treatments, whether it's coloring or styling.