Redseal Hairstyling License Practice Test

High porosity hair is characterized by its ability to absorb moisture quickly while also losing it just as easily. This results from the hair cuticles being raised or damaged, which creates gaps and holes that allow moisture to enter readily. However, once the hair absorbs moisture, it struggles to retain it due to those same gaps, making it prone to dryness and frizz. This porosity level often means that high porosity hair may need more frequent hydration and moisture treatments to maintain a healthy state.

The other characteristics noted in the other choices do not align with the properties of high porosity hair. For example, retaining moisture very well is typical of low porosity hair, not high porosity. A coarse texture can be associated with different hair types but is not specifically indicative of porosity. Lastly, being resistant to chemical treatments is a feature of low porosity hair, which tends to repel products instead of easily absorbing them.