Our formulators proprietary HA³ technology! While most HA serums use the largest molecular weight, they ultimately sit on top of the skin and produce temporary results. HA3 blends three (3) molecular weights. This creates the unique benefit of the smaller molecular weights penetrating deeper for multi-level hydration creating long-lasting hydration, reducing redness and fine lines and wrinkles. This lightweight serum rapidly nurtures skin from within for a more vibrant, radiant appearance.