* Supports Women"s Hormone Regulation * Herbal Supplement * Approved by Michael Tierra L.Ac, O.M.D Planetary Herbals Full Spectrum Vitex Extract combines a standardized extract of chaste tree berries, concentrated to 0.5% agnusides, with whole berries. Vitex modifies the effect of the hypothalamus and pituitary glands. This helps regulate and balance female hormone production. Combining the extract with the whole berry insures that the full spectrum of vitex compounds are included.