An Shen Bu Xin Wan is an all-natural Chinese herbal supplement that calms the Heart and Spirit, nourishes Liver Yin and blood, and is an effective, gentle remedy for insomnia, heart palpitations, and anxiety. Dan Shen (Salvia root) improves blood circulation while at the same time nourishes the blood and calms the Spirit. Other herbs in the formula such as Ye Jiao Teng, Wu Wei Zi, Shi Chang Pu, and He Huang Pi nourish the Heart and Liver Yin in order to treat insomnia and palpitations.