This new technology allows the bouncy biocellulose mask to be saturated with not only water-based ingredients but also oil-based ingredients. Complete your skincare routine with toner, serum, emulsion, and cream in one sheet. Midori Mayu silk and carefully selected ingredients are combined to create a rich, "oil-in-water" milk serum, which is then infused into the sheet mask. Biocellulose masks have traditionally been difficult to infuse with oil-based ingredients, but we've succeeded in equipping them with a balanced blend of water-based and oil-based ingredients, including silk-infused skincare and popular ingredients. The 30ml serum is absorbed into the sheet mask with virtually no residue remaining in the individual packaging. This allows you to achieve a skincare routine that combines toner, serum, emulsion, and cream in one sheet. This sheet mask contains approximately five times the amount of silk ingredients (sericin and fibroin) found in the entire Itoguchi Silk-infused Skincare Series. The water, essential for this sheet mask, comes from Uonuma, an ultra-soft water with a hardness of 16, and the moisturizing oil-rich snow camellia oil, all of which are bountiful blessings of the local Tokamachi region. Also included for the first time in the series is a rare Hokkaido birch fermentation extract, as well as the four popular ingredients niacinamide, bakuchiol, human ceramide, and hyaluronic acid. Peeling the sheet off after 15 minutes will leave you breathless with deep moisture, firmness, and clarity, simultaneously providing skin conditioning and high-level anti-aging care*1. *1 Age-appropriate care