COSRX The Peptide Collagen Duo brings together two peptide-rich treatments designed to leave skin looking fresh and hydrated, from complexion to under-eyes. Set Contents: COSRX The 6 Peptide Skin Booster Serum 150ml A lightweight, peptide-infused formula that layers seamlessly after cleansing, helping skin appear smoother, more supple and hydrated with a softly radiant finish. COSRX The Peptide Collagen Hydrogel Eye Patch 60 Patches Cooling hydrogel patches infused with peptides, collagen, and hydrating actives to help visibly refresh and brighten the delicate under-eye area.