Just helps regulate hormones and cycles, I think. Read some good things about it so thought I'd give it a shot!
Agnus Castus (Vitex or Chaste tree berry)
This is the herb of choice for helping to restore hormone imbalance and increasing fertility. In one study 48 women diagnosed with infertility took agnus castus daily for three months, 7 of them became pregnant during that time and 25 of them regained normal progesterone levels.
Agnus castus is particularly helpful for those women who have a luteal phase defect (shortened second half to the cycle) or those with high prolactin levels, because it stimulates the proper functioning of the pituitary gland which controls the hormones.
Agnus castus works to restore hormonal balance and can be used where there are hormone deficits as well as excesses it:
Regulates periods
Restarts periods which have stopped
Helps with heavy bleeding
Increases the ratio of progesterone to oestrogen by balancing excess oestrogen.