Essential Fx Acyl-Glutathione Eyelid Lift Serum is an ultra-lightweight eyelid tightening serum with a fast-absorbing texture to visibly smooth eyelid creases. crepiness and uneven texture. as it noticeably lifts the look of sagging eyelids while diminishing the look of dark circles under eyes. This revolutionary formula contains a Vitamin F Blend to replenish skin's natural moisture barrier. creating a more even-textured surface for smooth. primed eye makeup application.