The interior of the hair fiber is made up of multiple keratin fibers and can become brittle and lose strength and thickness. The hair loses volume and becomes flaccid and fallen. volume effects The hair fiber is strengthened from the inside, increasing its thickness and resistance to breakage. Positively charged wheat protein derivatives are placed on the hair fibers to create a film that gently spreads the charge between the fibers, preventing sticking and adding volume to the hair.