Matrix Amplify Root Lifter, Step 3, is designed to increase the thickness and diameter of hair by using a patented technology-amplifying professional volumizing system. Matrix Root Lifter Step 3 builds body and volume where your hair needs it the most: at the roots. Matrix Essentials Amplify is equipped with a snozzle” applicator to deliver maximum lift and features a weightless formula that builds volume and lift with flexible hold that leaves your hair with a natural shine.