BIOTHERM Aquasource Hyalu Plump day cream SPF30 helps make the skin appear plumper and protects it daily from UV radiation. The hyaluronic acid in the formula helps bind moisture and smooth fine lines caused by dryness. Niacinamide supports the skin barrier, evens out the complexion, and helps reduce moisture loss. Life Plankton™ ferment supports the skin’s natural defenses and helps keep the skin healthy.