According to Gibson, 4C textured hair is tightly coiled in ... For instance, if you have low porosity hair—meaning it doesn't ...

Well, allow me to add four new words to your hair vocabulary: ‘low porosity’ and ‘high porosity’. Porosity, a term to describe how capable your hair shaft is of being penetrated ...

Hair porosity is divided into three broad categories: low porosity - cuticles that are close together; medium porosity – cuticles that are less tightly bound; and high porosity – cuticles that are ...