Ohio Cosmetology License Practice Exam

The term "porosity" in hair care specifically refers to the hair's ability to absorb moisture. It indicates how well hair can take in and hold moisture, which is crucial in determining the appropriate hair care products and techniques to use.

Hair can be classified as low, medium, or high porosity. Low porosity hair has tightly packed cuticles that resist moisture absorption, while high porosity hair has more gaps and holes in the cuticle layer, allowing moisture to enter easily but often leading to quicker loss of moisture as well. Understanding porosity helps hairstylists and clients choose treatments, conditioners, and styling products that best meet the hair's unique needs for hydration and care.

Other terms listed, such as the thickness of hair strands, elasticity, and natural color, deal with different characteristics of hair but do not pertain to its moisture absorption abilities. This understanding is vital for effective hair care practices, especially in maintaining healthy hair.