What it is: A serum formulated for the neck and decolletage that contains high concentrations of active ingredients. What it does: This serum helps minimize lines and wrinkles, sculpt the chin and jawline, provide volume to skin and even out skin tone. Shittake extract improves skin firmness, reduces sagginess and creates a tightening mesh to provide a visible lifting effect to skin. Hyaluronic acid hydrates, boosts elasticity and softens skin's