Trusted by professionals to give the best of nature for hair. BIOLAGE ULTRA HYDRASOURCE Shampoo gently cleanses as it quenches dry hair and attracts moisture. It is a paraben free shampoo that is powered by Aloe vera, nature’s moisture-rich plant. Provides a non stop source of hydration to dry hair. When using the system of HYDRASOURCE shampoo, conditioner vs. a non-conditioning shampoo.