The Huang Di Nei Jing bottle draws its inspiration from the notion of Yin and Yang, what's known as the way of heaven and earth. The solid circle is Yang, symbolizing heaven, the dotted circle is Yin, a symbol of the earth. This tradition and concept are at the core of the Huang Di Nei Jing brand. The main packaging color is white, a symbol of inclusion and a strong expression of the eastern aesthetic.