Know Thy Hair – Porosity

Hair porosity is the ability of the hair to absorb water, products and overall moisture. The degree of porosity is directly related to the condition of the cuticle layer (outer layer of the hair strand). Healthy hair with a compact cuticle layer is naturally resistant to penetration. Porous hair has a raised cuticle layer that easily absorbs moisture. The ranges are broken down into low, normal and high porosity.