Bioidentical hormones are made in a laboratory. They are based on compounds found in plants (usually soybeans or wild yams).
After the plant-based hormone is processed, its structure is said to be identical to the estrogen, progesterone, or androgen hormone your body makes. (Well-designed studies have yet to prove this theory.1) A compounding pharmacist can offer you a custom-made formulation in one of many forms. You might get a capsule, a skin cream or gel, a tablet to dissolve under your tongue, a suppository, or a nose spray. Some commonly prescribed estrogens and progesterones are bioidenticals, such as Estrace (estradiol). There's a major difference between custom-made formulations and commercial products. Commercial products are regulated and tested for purity and potency, but compounding pharmacies are not.2
It was the summer of 2002 when the news about hormone replacement therapy (HRT) shook us to the core.
In what felt like a bomb dropped on all womankind, the U.S. federal government halted the hormone trial of the Women's Health Initiative early – a study designed to evaluate the risks and benefits of hormone replacement therapy on disease prevention.
The reason: Not only had HRT failed to be the protective fountain of youth doctors and women had long since believed, evidence was mounting that...
Just like synthetic hormone therapy, bioidentical hormones are prescribed to increase or stabilize a woman's hormone levels. This is most often done during perimenopause, when hormone levels change unpredictably. It's also done after menopause, when the hormones drop to low levels.