The Dermalogica Hyaluronic Acid Ionic Serum Pro in the size of 2 Fl Oz (59 ml) is a highly effective serum specifically designed for intense hydration of the skin. With its unique ionic formula, it promotes the absorption of hyaluronic acid to make the skin appear firmer and plumper. Ideal for all skin types, it supports the natural skin barrier and reduces the appearance of fine lines. The lightweight texture absorbs quickly without leaving a greasy film, leaving the skin feeling fresh and hydrated.