From the Manufacturer:
Containing natural herbs, Liquid PMS Support gently regulates hormone balance and provides key nutrients. Because of its liquid form you get superior absorption.
Vitabase Liquid PMS formula is designed to promote nutritional support for a broad spectrum of PMS symptoms. The vitamins and minerals support general health ensuring proper levels sometimes depleted during monthly menses. Vitamin B-6 acts as a mild diuretic reducing symptoms like bloating.