Swanson Full Spectrum® Vitex Fruit, also known as Vitex agnus-castus, has a long history of use by women to relieve symptoms that occur during the menstrual period. Studies suggest that it has a similar action to progesterone, which may explain why it is used to support womens health. Due to this activity, vitex fruit has been proposed for a variety of common problems in PMS syndrome during the period, such as: Mood swings Physical and mental sensitivity Water balance in the body How Swanson Vitex Fruit will contribute to your body: Supports hormone production and balance Helps relieve womens menstrual discomfort Full Spectrum Fruit Formula Dosage: Take one capsule twice a day with sufficient water.