What is the primary function of hairspray?

The primary function of hairspray is to provide hold and control to hairstyles. Hairspray contains polymers that create a flexible film around the hair strands, helping to maintain the shape and style of a hairdo for an extended period. This is particularly important for styles that require precision and longevity, such as updos or structured looks.

Hairspray acts as a finishing product that ensures the hair remains in place despite environmental factors like humidity or movement. It does not serve the primary purpose of hydrating hair, enhancing color, or repairing damage, which are functions associated with other hair care products such as conditioners, color enhancing treatments, or repair serums.