Acyl-Glutathione Eye Lid Serum is scientifically formulated to tighten and firm the upper eye lid area, while smoothing creases and improving the appearance of redness and dark circles. It also works on the 360 degree orbital rim by tightening loose, sagging skin and tackling dark circles. It instantly enhances makeup application by acting as a primer to help makeup glide on more smoothly and improve its wear throughout the day. Light in texture and fast-absorbing with visibly instant tightening and smoothing effects. Independent consumer use studies demonstrated extraordinary results after only 30 days of application: *80% saw improvement in the appearance of dark circles. 76% saw improvement in the appearance of creases above their eyes. 73% saw improvement in redness of the eyelid *76% said their upper eyelid looked smoother. 78% agreed this product helped makeup application go on more smoothly. 76% agreed this product worked well as a primer to enhance their makeup application and wear. Dr. Perricone recommends applying directly to the eyelid , working up to the brow bone, in gentle patting motions. Also apply on under eye area in gentle patting motions. Allow serum to absorb for a few moments and follow with an eye cream if extra moisture is needed.