Our essential oil roll-on blend will calm your PMS. TIt features the cycle-regulating power of Marjoram and the calming properties of Petitgrain, which are absorbed by the body into the blood stream, where it circulates to all the vital systems of the body and regulates the hormonal balances that can cause premenstrual stress. The manual action of the roll-on also relieves the pressure points in the body, while allowing for a consistent and effective dosage.