Agnus castus has an impact on hormone-producing areas of the brain, such as the pituitary gland, which then leads to a reduction in prolactin, a hormone that may be involved in PMS. Agnus castus is most often taken for PMS, but research shows it may also be helpful for other hormonal conditions including menopause and female fertility issues. Our Agnus castus capsules are 100% pure. pullulan capsules shells are used making these amazing capsules vegan & vegetarian friendly. Each capsule contains 675mg of goodness.