"If a woman with low libido walks into her doctor's office and asks for a blood test to see if she can use that new testosterone patch, well, there's no basis for that," said lead author Dr. Susan Davis of Monash Medical School in Victoria, Australia. "They're totally uninformative."
Some studies have shown improvement of sexual function and psychological well being upon receiving testosterone therapies. Procter & Gamble is developing the testosterone patch Invisira to increase female libido.
They did find that women with low sexual function often had low levels of the hormone dehydroepiandrosterone sulfate, or DHEAS, a precursor compound that is converted by cells into testosterone and estrogen.