Dragon Jing is very special formulation which was used by an infamous Chinese emperor for Yang primal energy. Dragon Jing is the most powerful Yang tonic formulation money can buy. Yang tonics of this nature would traditionally be used by athletes to enhance physical power and performance and by those who wish to increase sexual vitality. These days, it is primarily used as a strengthening Yang tonic beneficial to the whole system. Yang energy is necessary to live long and vibrantly. Dragon Jing is suited best for men.