Wu Zi Yan Zong Wan literally means "five seeds passing on the generations" in Chinese. It was originated over one thousand years ago by someone who wanted the emperor to give rise to more offsprings. It is composed of five Chinese herbs (seeds) that can nourish the kidney and Jing (semen, the essence of life) in traditional Chinese medicine (TCM) terms.

In TCM, the kidney is the source of Yin, Yang, and Jing. A normal reproduction needs a healthy kidney function with respect to Yin, Yang, and Jing. When kidney Yin, Yang, or/and Jing is weak, problems may arise in reproduction. Although in the ancient time people did not know the cause why a man fails to get his wife pregnant, this formula has been passed on for its use in helping couples getting offsprings. Today modern medical science has long revealed that the cause in male reproduction is mostly due to the semen problems regarding to sperm counts, sperm morphology, and sperm mobility etc.

Wu Zi Yan Zong Wan is indicated in China Pharmacopoeia1 for tonifying the kidney and nourishing Jing. It is suitable for use in the case of the kidney deficiency presented with lower back weakness and poor male performance.

Sperm growth and maturation is a lengthy process (2 to 3 months), any intended use should persist for at least 3 months and ideally 6 months.