Chasteberry

Chasteberry contains compounds that affect hormone levels by increasing the production of luteinizing hormone and inhibiting the release of follicle-stimulating hormone. This leads to greater production of progesterone, helping to normalize the estrogen-to-progesterone ratio. Research suggests it works primarily on the pituitary gland, which controls the release of various hormones in the body.

Used since ancient Greece and Rome, chasteberry was traditionally given to monks to decrease sexual desire (hence the name 'monk's pepper'). In medieval Europe, it was used to promote chastity. Traditional herbalists have long prescribed it for menstrual problems, lactation difficulties, and to help with symptoms of menopause.

Many women report significant reduction in PMS symptoms like irritability, mood swings, breast tenderness, and bloating when taking chasteberry regularly. Some women with fertility issues have reported becoming pregnant after using chasteberry to regulate their cycles, though these reports are anecdotal.