Final answer:
Hair spray is a household solution used to stiffen hair and hold styles for a long time. It can make the scalp more flexible when used along with hair brushing. However, it may leave the hair feeling 'crunchy' unless brushed out.
Step-by-step explanation:
Hair spray is a common household aqueous solution used to stiffen hair into a specific style. It is weaker than hair gel or hair wax and is sprayed directly onto the hair to hold styles for long periods of time. However, it may leave the hair feeling 'crunchy' unless brushed out. Brushing the hair helps distribute the product evenly and makes the scalp and hair more flexible.