Peter Thomas Roth Peptide Skinjection Expression Line Hydra-Gel Patches are soaked in a potent peptide solution to help improve the look of fine lines and wrinkles around the eye and brow area. Niacinamide helps skin appear brighter, while Cactus Flower, Squalane, Trehalose and Hyaluronic Acid leave skin feeling nourished and infused with moisture.