Chasteberry (Vitex agnus-castus) is an herbal supplement most commonly used to relieve premenstrual syndrome (PMS), menstrual cycle irregularities, and cyclical breast pain
Premenstrual Syndrome (PMS): Eases mood swings, irritability, anger, headaches, bloating, and breast fullness.
Menstrual Irregularities: Helps promote a more predictable cycle and supports balance for irregular periods or absent periods (amenorrhea).
Cyclical Breast Pain (Mastalgia): Reduces breast tenderness and discomfort that occurs before a period.
Menopause and Mid-Life Support: Sometimes used to manage transition-related discomforts, though research is more limited here.