American Crew - Haircare - Fiber Shampoo 250ml Fiber Pre-Styling Cleansers contains a sugar-based bond builder that penetrates the hair fiber, reinforcing the internal structure. Hair is left feeling stronger and thicker. BENEFITS: - GENTLY CLEANSES WHILE STRENGTHENING HAIR FROM THE INSIDE. - LEAVES HAIR LOOKING HEALTHIER. - IDEAL FOR ADDING TEXTURE AND CONTROL.