The Anua Peach 70 Niacin Serum Mask is a popular K-beauty sheet mask featuring 70% peach fruit extract and niacinamide to brighten, hydrate, and even skin tone, with added hyaluronic acid, collagen, and soothing botanicals for a radiant, plump, and smoother complexion, suitable for most skin types, even sensitive. It's known for its ultra-thin, comfortable hydrogel sheet, gentle absorption, and potential for overnight use for deep revitalization.