innisfree Idebenone Active Mask 25ml X 5eaA hydrating sheet mask enriched with idebenone and adenosine for firmer feeling skin. Formulated with niacinamide to brighten, this skin plumping sheet mask leaves skin glowing and supple. Made from a soft and delicate yarn, our ultra fine Active Masks offer functional formulas that are gentle on sensitive skin. Each mask is infused with a low molecular hyaluronic acid that absorbs deep into the skin, leaving it feeling soft, supple and plump!