The term bio-identical designates hormones that are synthesized to be identical to those your body makes. This sets them apart from the synthetic compounds meant to mimic natural hormone function, such as medroxyprogesterone (Provera) and conjugated equine estrogen (Premarin). Testosterone and other hormones such as DHEA and oxytocin are also available as bio-identical formulations.
Bio-Identical does NOT mean that the hormones are “natural”. Bio-Identical hormones are synthesized via pharmaceutical production methods like other drugs but have the same exact structure to your body’s own hormones. “Natural” implies a source from nature such as soy, which while similar in structure, is NOT the same.