CKD Pore Elasticity Mask with Retino Collagen Small Molecule, Hydrogel Anti-aging Face Sheet Mask Tightens Pores & Sagging Skin, Moisturizing Face Mask to Restore Elasticity & Firmness, 10 Sheets 5 Count (Pack of 2) Retino Collagen Mask is up for auction in Beauty & Personal Care. The current bid is $4.50, 88% below the $38.40 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.