YANAGIYA was established in 1615 by Roikkan, a doctor who served the notorious shogun (warlord) Ieyasu Tokugawa using natural remedies and cosmetics drawn from Chinese medicine. The brand's all-time bestselling hair tonic utilizes extracts from swertia japonica, ginseng, sophora flavescens and rabdosia japonica, which penetrate into roots to prevent hair loss.YesStyle is an authorized retailer of YANAGIYA.