I am amazed by this serum! Worked wonders for my skin already,and is only day 5! The H. A. Intensifier contains 10% proxylane , 2% licorice root extract, together with 3 types of hyaluronic acid ( never knew there was more than one type), to instantly improve the plumpness and skin texture. All you need is 4 to 6 drops of this wonder serum, twice a day, apply to your skin and follow with the preferred moisturiser- done! Highly recomended