Formulated with Dr. Perricone's patented Acyl-Glutathione, this powerful anti-aging treatment is designed to address visible expression lines and creases that appear from repetitive facial movements. Over time, these engraved imperfections appear instantly smoothed, making creases appear shallower and erasing the look of furrow creases along the forehead, squinting creases and feathery lines along the lips, to help achieve a more youthful-looking appearance. Neuropeptides, specifically formulated messenger molecules, help boost the appearance of suppleness and firmness.Research results:In a consumer-use study:- 85% agreed their skin looked more luminous.- 85% said their face took on a more relaxed appearance and had a more pleasant and youthful expression.- 80% saw a smoothing of facial lines and creases by daily repetitive movement and agreed their laughter lines looked shallower.How to use: Smooth onto a cleansed face in the morning, paying special attention to visible expression lines and creases. Follow with a moisturizer. Style Name:Perricone Md Acyl-Glutathione Deep Crease Serum. Style Number: 672387. Available in stores.