Thixel technology. Step 1. Cleanse; 2. Condition; 3. Volumize; 4. Finish. Amplify 4-Step Professional Volumizing system, with patented Thixel Thickening technology boosts from the base as it thickens without weight for fuller hair that's clean to the touch. Delivers increased thickness, maximum volume and long-lasting memory hold. Step 3: Amplify Thick Boost Gel expands hair's volume with an airy-lite fullness. Workable gel infuses fine, limp hair with lasting lift, body and shine while leaving it clean and flake-free. Made in USA.