Essential Fx Acyl Glutathione Deep Crease Serum Perricone MD Perricone MD Neuropeptide Deep Crease Serum For your skin's smoothing needs Essential Fx Acyl Glutathione Deep Crease Serum is highly potent with a silky, luxurious texture that absorbs quickly to smooth the look of even the most stubborn, deep set Ive been loving this dynamic crease fighting dual @Perricone MD Official #perriconemd #perriconemdpartner #gifted