*** Características *** Cistanche is a traditional Chinese herb that supports the immune system’s ability to target new invaders. Rejuvenates youthful T-cells *** Descripción *** Standardized Cistanche provides powerful support against immune senescence. Scientists have discovered that the echinacoside pound found in Cistanche plant extract stimulates the development of naive T cells and leads to a lower amount of memory T cells, thereby creating a more balanced immune response. Cistanche also increases natural killer (NK) cell activity—resulting in a 15% life span increase in animal research. For those seeking the effects of Cistanche only, Life Extension has created a standalone Standardized Cistanche that contains the same echinacosides as in the Immune Senescence Protection Formula.