I used bioidentical progesterone to balance my hormones after imbalance caused by synthetic hormones in birth control just about destroyed my life. As a short term help , until my body was able to start producing its own progesterone again, it was invaluable. I now take maca to help things along and will be trying jiaogulan tea, suggested by hvergerthi as well.
I wouldn't recommend using the bioidentical hormones long term for pre-menopausal women, but as a short term aid to hormone balancing it worked well with no side effects whatsoever.