Dehydrated, lifeless hair? These are the signs of loss of moisture. Our rehydrating shampoo instantly coats the cuticles and fills hair with 72h moisture, for 2x shinier, 10x more hydrated, and revitalized hair with no weigh down. The Power of Hyaluronic Acid: Naturally found in the body, this molecule retains 1000 times its weight in water and helps re-plump hair.