COSRX The Peptide Collagen Hydrogel Eye Patch – Pink. Refresh and care for the delicate under-eye area withCOSRX The Peptide Collagen Hydrogel Eye Patch. These pink hydrogel eye patches are formulated with4 multifunctional peptides, low-molecular collagen, caffeine, niacinamide, and hyaluronic acid to provide targeted hydration while helping improve the appearance of puffiness, fine lines, and dull-looking under-eyes.