Winona, as a brand of clinical skin care, is more functional and safe than general cosmeceutical products. The concept of "Great Shu Min" put forward by her is designed for different skin problems on the basis of in-depth study and summary of the etiology, pathogenesis and clinical manifestations of sensitive skin. Instead of simply soothing the surface layer of the skin, effective ingredients penetrate into the inner layer of the skin to improve the structure and function of the skin barrier, thus repairing the skin and solving sensitive skin problems.