Essential Fx Acyl-Glutathione Deep Crease Serum - Perricone MD Essential Fx Acyl-Glutathione Deep Crease Serum is a serum to smooth deep wrinkles, creases, marionette and lip lines.Benefits89% noticed an improvement in lines and texture*93% noticed skin looked renewed*79% noticed engraved imperfections appeared shallower*77% noticed that skin looked lifted*Visibly improves etched creases making them appear more shallow84% saw that skin looked more toned*Overall Skin Condition:Minimizes the appearance of skin imperfections and imparts a beautiful radiance86% felt firmer, tighter skin*86% saw an improvement in expression lines*84% saw that wrinkles were smoothed*83% noticed creases appeared shallower and forehead lines appeared smoother*Softens the look of facial lines from daily repetitive movements73% saw that deep-set wrinkles, including marionette lines and nasolabial folds were smoothed**In a consumer study of 102 women after 28 days82% saw tighter-looking skin*74% felt that skin looked dramatically younger*Advanced Claims:80% saw lines smoothed around the mouth and lips*Key IngredientsVitamin F Blend: Ultimate Moisture Barrier ProtectionAcyl-Glutathione: The Master Antioxidant - Essential Fx Acyl-Glutathione Deep Crease Serum