Liubizhi, the oral care brand of Blue Sky Group, inherits the century-old experience in the research and development of traditional Chinese medicine oral products, integrates the essence of traditional Chinese medicine classics with modern technology, provides prevention and treatment for common oral problems of Chinese, and maintains oral health.

Liubizhi traditional Chinese medicine oral care technology originated more than 100 years ago. In 1911, Liu Kaiping, the founder of "Tongchang Hong", the predecessor of Blue Sky Group, founded the "Old Train" tooth powder, and pioneered the addition of menthol traditional Chinese medicine ingredients and rose natural plants, which became a best-selling oral care product in one fell swoop, creating a new era of China's tooth powder industry.

In 1972, the Blue Sky Dental Research Center, which focuses on the research of Chinese people's oral health, created a precedent for traditional Chinese medicine toothpaste and launched the first Chinese herbal toothpaste in China. In 1992, blue sky scientific research experts found inspiration from the Northern Song Dynasty scientist Shen Kuo's "Mengxi Writings", and used the traditional Chinese medicine Sophora sophora ingredients verified by the ancients to effectively "treat toothache", and developed a full-effect toothpaste with 6 functions with modern technology and scientific compatibility, which effectively alleviated the common tooth and gum problems of Chinese people. To this day, Blue Sky all-in-one toothpaste is still deeply loved by consumers for its remarkable prevention and treatment effect of traditional Chinese medicine and value-for-money.

In 2006, Blue Sky Group was reorganized.