Serum strength treatment of La Mer softens, smoothes and plumps lips with hydration for a fuller look and an irresistible sheen high-shine finish.The benefits of La Mer serum:- Full, youthful-looking lips;- Plumps with hydration;- Softens and smoothes delicate skin;- Visibly reduces lines over time;- Protects against future damage with potent antioxidants.