Witch hazel helps to clarify skin, tone pores and gives skin a smooth appearance. The serum helps in the skin renewal process and moisturization. It also supports the collagen structure of the skin which improves skin texture and appearance. It is suitable for all skin types. Brightening and hydrating serum to improve complexion Help revive your dull complexion and add radiance with WOW Skin Science 20% Vitamin C Face Serum. Vitamin C, witch hazel and hyaluronic acid help to fade pigmentation, fight signs of aging brought on by free radicals, brighten and nourish skin.