vIn TCM, Jing is considered an essential fluid-like substance for life. It is needed for reproduction, growth, development and maturation. As one grows older, Jing normally decreases. The Jing can be found in the kidneys.

Essence (a Yin characteristic) is that aspect of the body that is the basis for all wellness-herbalgrowth, development, and sexuality. Congenital Essence is that part of the body’s Essence that is inherited from ones parents. After birth this Essence, which is akin to an inborn constitution (DNA), determines each of our growth patterns. Congenital Essence can never be replaced if lost, but can be supplemented by acquired Essence, which is derived from food and herbs. Many of the best tonic herbs for healthy aging support the essence. It is important to maintain abundant qi through proper diet, breathing exercises and meditation, and tonic herbs so that you do not consume essence. Proper lifestyle habits, such as proper, sound sleep at night also help to preserve essence.

Essence is Yin in nature, and is the primary substance responsible for growth and development, metabolism, and plays a role in daily activity especially when Qi is depleted. Essence can be regarded as substantial Yin, and spirit, or Shen, as the counterpart Yang.

Kidney Essence
Kidney Essence produces marrow, which then produces bone marrow and then fills the spine, bone marrow and spinal cord. This is why Kidney tonics are so important in the full recovery of back injuries.

Kidney Essence rules over growth, reproduction, and development, and Kidney deficiencies can manifest as improper growth and maturation, sexual dysfunction, ED Impotence, Infertility, premature aging and birth defects.