Tsumugi Soak Serum is a moisturizing ceramide serum that contains human-type ceramides (ceramide 1, ceramide 3, and ceramide 6-2). Even if you moisturize, it will quickly become bulky, your face will look dark due to dullness due to dryness, your skin will become sensitive due to changes in the season and environment, and the cosmetics you always use will no longer suit your skin... If you are such a person, you may be starting to run out of ceramides in your skin ... The amount of ceramide in your skin decreases with age, and if you consider 100% in your 20s, it will decrease to 62% in your 30s and 37% in your 40s. And when the ceramide in the skin decreases, the barrier function of the skin decreases, making it vulnerable to external stimuli and insufficient moisture in the skin, which can lead to various skin problems. Therefore, the Tsumugi Soak Serum was developed based on human-type ceramide, which has the same structure as human ceramide, which easily penetrates naturally into the stratum corneum. Ceramide 1 (Ceramide EOP): By moisturizing the skin, it supports the barrier function and leads to healthy skin. Ceramide 3 (Ceramide NP): Brings fresh and firm skin. Ceramide 6-2 (Ceramide AP): Supports the skin's ability to become beautiful by adjusting the rhythm of aging skin, leading to smooth and shiny skin. Yuzu ceramide: Supports hyaluronic acid and collagen present in the skin, leading to firm and moisturized skin. * Yuzu ceramide is a naturally derived ceramide extracted from the fruit "Yuzu" of the Rutaceae family. It has a structure similar to ceramide present in the stratum corneum, and can be expected to have excellent beauty effects such as moisturizing and aging care (age-appropriate moisturizing care). All manufacturing is done in Japan. (Made in Japan)