The serum contains an extract produced by lactic acid bacteria, which demonstrates its effectiveness against signs of aging. It begins to penetrate the skin from the moment of application. Additionally, it utilizes Tokachi placenta, extracted from Hokkaido Whey pigs raised on a farm certified with the HACCP standard. After extraction, the placenta extract is immediately frozen and used in cosmetics within 10 days. “Supreme Placenta” always employs fresh Tokachi placenta extract. The serum revitalizes aging skin and is suitable for use on clean skin after washing.