Bioidentical hormones have the exact molecular structure as those made in human body.  BHRT produces the same physiological responses as those of endogenous hormones. 

Compounding pharmacists can prepare plant-derived bioidentical hormones from a physician's prescription in a variety of dosage forms, strengths and combinations that can be customised for each patient's needs to improve the treatment outcomes.  Compounding pharmacists must comply with the regulations of state boards of pharmacy and have access to the highest grade raw materials and state-of-the-art equipment to accurately formulate hormone prescriptions.

BHRT has to be monitored carefully and a lowest dose is used for the shortest duration of time.  Regular health checks need to be done while on hormone treatment as safety is not guaranteed because of lack of long term clinical trials.