The ability of the hair to absorb moisture determines its?

The ability of hair to absorb moisture is referred to as porosity. Porosity describes how well hair can retain moisture and other substances. Hair with high porosity typically absorbs moisture easily, indicating that its cuticle layer is either damaged or more open, allowing for greater moisture uptake. Conversely, hair with low porosity is often more resistant to absorbing moisture due to tightly packed cuticles, making it harder for moisture to penetrate.

In contrast, elasticity pertains to how much hair can stretch and return to its original length without breaking. Strength refers to the hair's resistance to breaking under tension, while density refers to the number of hair strands in a given area on the scalp. Each of these characteristics plays a different role in the overall health and behavior of hair, but porosity specifically addresses its moisture absorption capacity.