For over 40 years, SK-II has been transforming skincare and changing the lives of millions of women worldwide. The fascinating story of SK-II began with a simple question: Why did elderly sake brewers have wrinkled faces but remarkably soft and youthful hands?Years of research and collaboration with scientists led to the discovery of the miracle ingredient—PITERA™. This naturally derived essence is extracted from a special yeast strain through SK-II’s exclusive fermentation process. Since then, SK-II and PITERA have become the ultimate secret to youthful skin for celebrities around the world, including Baifern Pimchanok, Tang Wei, Haruka Ayase, and MINA from TWICE.