What physical characteristic of hair is described by the term "hair density"?

The term "hair density" specifically refers to the number of individual hair strands present on the scalp. When discussing hair density, professionals often measure how many strands of hair are packed into a specific area of the scalp. This characteristic influences various aspects of hairstyling and hair care, including the volume and overall appearance of the hair.

In contrast, the texture of the hair relates to its feel and structure—whether it is coarse, fine, wavy, or straight—while hair color pertains to pigmentation, and hair length is simply a measurement from the scalp to the tip of the hair strands. Understanding hair density is essential for determining appropriate styling techniques, product usage, and treatment plans tailored to an individual's unique hair characteristics.