Jurlique says:Wild Yam is a kind of natural herbal. Specially formulated for the benefit of women health. Effective to minimize menopausal and pre-menstrual tension . I used up bottle and I used it 2 weeks before period time and I can say it does work,but I think this product is so expensive and same maybe better job can do melissa tea.This product comes in heavy glass bottle.I wouldnt buy again.It is not must have.