Chasteberry Extract is the fruit of Chasteberry tree,agnus castus.

There are two kinds of extract Chasteberry Extract 10:1 and 5% Vitexin.
For the 10:1 extract,the assay/purity does not be tested.Different dextrin quantity leads to different prices.
Another way to check the quality of 10:1 extract is whether it can pass ID.

Chasteberry contains Vitex and it is very similar to Progesterone.Also it can relieve premenstrual syndrome and irregular menstruation syndrome, and promote breast health.

The raw material of Chasteberry is expensive;therefore its extract is a little expensive,too.
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