Our facial serum contains glycerin and collagen. It can be used continuously to improve skin firmness. Locks in moisture and leaves skin softer and smoother. The way to use it is simple: clean your face and keep it dry. Apply appropriate amount to face evenly. Massage gently until absorbed. And can help fade fine lines and restore youthful luster. Support the skin barrier and improve health. Improves skin elasticity and restores smoothness and firmness.