BioSilk Volumizing Therapy fuses nourishing silk proteins with the volumizing elements of Hair Volume Complex and the strengthening power of rice proteins. These essential ingredients awaken the roots and build luscious body and shine without weighing down your locks. UV absorbers protect your hair from harmful rays. Sulfate and Paraben-Free. Silk in BioSilk Volumizing Therapy gives hair added strength, moisture, shine and protection for healthy volumized hair. Hair Volume Complex, a botanical complex infused with ginseng and nettle, fortifies hair and invigorates the scalp.