Under-eye bags are one of the most frustrating skin concerns because they're rarely caused by just one thing—fluid retention, thinning skin, and fat pads shifting with age all play a role, which is why no single product works overnight. That said, a consistent night time skincare routine can make a real difference in how the area looks over time. Retinal is especially useful here: it supports collagen production and gradually thickens the thin under-eye skin that makes bags and shadows more visible, while also helping with fine lines and uneven skin tone in the surrounding area.
Because the eye area is more delicate than the rest of the face, it's worth using a formula made specifically for it rather than your regular facial retinal product—eye-specific formulas are designed with added soothing ingredients to help minimize irritation in this sensitive zone. Pair that with simple daily habits like sleeping slightly elevated and reducing salt intake before bed, and you'll support what your skincare is doing from the outside.
It's worth setting realistic expectations, too: retinal can visibly firm and smooth the under-eye area, but true structural bags (caused by fat pad shifts) are a concern skincare alone can't fully resolve—for that, a dermatologist can walk you through additional options.
Ready to target the area directly? Use K-SECRET SEOUL 1988 Retinal Glow Eye Patch a few nights a week as a lighter treatment, or reach for the Retinal Liposome 4% Eye Cream for deeper, more consistent overnight renewal.