Dongxing Pharmaceutical Co., Ltd. changed the hair dye that was used in the past and developed a water-soluble hair dye "Yang Guifei No. 1" that has dominated the domestic hair dye trend since the 1950s. Thanks to the unremitting efforts and enthusiasm of Dongxing Pharmaceutical’s founder and nominal chairman Lee Sun-gyu, it is still known as the “pioneer of hair dye”. After the launch of "Yang Guifei No. 1", a new concept of colored hair dyeing was launched, and it has been leading the fashion in the field of hair dyeing since the 1960s.
Dongsung Pharmaceutical Co., Ltd. is not satisfied with the current results and is committed to developing "Seven Eight hair dye" that can quickly dye hair in 7 to 8 minutes. It is also the first to launch odor-free hair dye in Korea.
Dongsung Pharmaceutical Co., Ltd. has continued to invest and lead the development of new hair dyes and now has hair dye compositions including dye penetration enhancers. Neutral hair dye compositions, hair dye compositions containing metal compounds, hair dye compositions for scalp care, semi-permanent hair dye compositions developed using waterproof mucous membrane agents, oxidative hair dye compositions containing ultraviolet blocking, etc. 7 ~8 kinds of patents at home and abroad.
It is also called the "Black Hair Mask Technique" by Korean people. At present, the Korean East Star Black Hair Group has come to China.