Matrix Essentials Amplify Hair Spray, 4

4 - Finish. Amplify Professional Volumizing System, with patented technologies, is designed to increase the thickness and diameter of hair. Step 4- Amplify Hair Spray is a fast drying, ultra-fine mist that delivers strong, flexible hold to full-bodied styles. Hair is left static free, shiny, and manageable. Humidity resistant. Easily shampoos out leaving no build up.