Matrix hair styling products. BIOLAGE FIBERSTRONG Shampoo. Softly cleanses fragile or damaged hair while strengthens it and makes it more resistant. Repairs the internal structure of the hair fiber and prevents future damage. Contains bamboo which adds strength and flexibility, and Intra-Cylane TM whose molecule fills the micro holes that has the damaged cuticle. Apply to wet hair with a gentle massage, rinse well and repeat if desired. Doesn't contain parabens.