Hair could be styled in a vast number of ways for practical or aesthetic reasons. The human weapon experts Sabine Wren used to keep her hair short because it would often get sweaty under herMandalorianhelmet. Nonetheless, she also did dye jobs to add rainbow streaks in her hair. Besides conventional dyes, there existed a Mon Cal microplankton that would bond with each strand of hair, giving it a bioluminescent glow. The queens of Naboo often sported very intricate hairstyles. A product known as hair gel could be applied to tame any unruly hairs one may have. In humans, gray hairs were a sign of aging. Premature graying could also be a sign of stress, and was common in members of the Resistance.
The Nightsisters of Dathomir could inflict a curse on a given individual by creating a waxen effigy of that person. The creation of the effigy required a lock of the intended victim's hair.
Militaries typically had requirements regarding the hair style of their officers. For example, close-cropped hair was a requirement in the Galactic Republic's military. In the Galactic Empire, officers often cut their hair short for optimal efficiency, but were allowed to keep it long on the condition that they wore it pinned back in tight braids.
Hair appears in almost every Star Wars work. Hair is also referred to in virtually every Star Warsnovel and many short stories, since describing someone's hair is often used to describe a character physically to the reader.