Hyaluron Boost Duo with the power of Hyaluronic Acid will revive, add volume and shine to your hair. It's a 2 step hair care routine with a light weight formula, including Hyaluron Boost Natural Shampoo and Hyaluron Boost Natural Conditioner. Designed to cleanse your hair without weighing it down, and to condition your hair for shiny and frizz free hair.