Polygala tenuifolia, also known as Yuan Zhi, is a root used in Traditional Chinese Medicine.It has traditionally been used for its protective effects on the brain.Preliminary animal evidence suggests that Polygala tenuifolia has an antidepressant effect in rats. 
Polygala tenuifolia may improve cognition, but more research is needed to confirm this effect.Rodent research suggests that Polygala tenuifolia is similar in mechanism which interacts with N-methyl-D-aspartic acid and its receptors. Rodent studies assessing Polygala tenuifolia's anti-amnesiac and adaptogen-like properties suggest that the herb can increase the level of compounds responsible for brain growth, like nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF).
 

Product Name	Radix Polygalae Extract
Latin Name	Polygala tenuifolia Willd.
Specs	10:1;20:1
Appearance	Brown Fine Powder
Grade	Food Grade
Shelf Life	2 years
Certification	Halal, Kosher, Iso, Haccp
Packing	25kg/bags

Function of Radix Polygalae Extract

Sedative and analgesic effects.
Expectorant, antitussive effects.
Promote physical, mental and brain protection, anti-aging effects.
The role of smooth muscle and myocardial.