The Testosterone Pellet Boom: What Women Should Know

By: Mehdia Amini, MD

The appeal is easy to understand. A small pellet containing testosterone is inserted under the skin, where it slowly releases hormone for several months. No daily medication to remember, and many women report meaningful improvements in sexual desire and overall well-being.

But that convenience comes with an important trade-off:
Once the pellet is implanted, the dose cannot be readily titrated.

Women don’t all absorb, metabolize, or respond to testosterone in exactly the same way. One woman may tolerate a particular exposure without difficulty; another may develop androgenic effects relatively quickly. With a transdermal formulation, the dose can be adjusted, or treatment can be stopped. With a pellet, we’ve committed to a delivery system designed to keep releasing testosterone for months.

Can a pellet be removed? Sometimes. But removal may require locating the pellet and performing another medical procedure. It isn’t a practical substitute for simply being able to adjust a medication.

And that is really the center of my concern with pellets: we’re giving up control over the dose of a potent hormone before we know exactly how an individual woman will respond to it.

Testosterone Has One Evidence-Based Indication in Women

Testosterone has acquired a surprisingly impressive resume. Fatigue. Brain fog. Weight gain. Difficulty building muscle. Low motivation. Mood changes. The familiar “I just don’t feel like myself anymore.”

These symptoms are real. But the evidence for testosterone is much narrower than the marketing.

The only evidence-based indication for systemic testosterone therapy in women is hypoactive sexual desire disorder (HSDD). In the United States, there is currently no FDA-approved testosterone formulation for women, so its use for HSDD is off-label.

There is no testosterone level that diagnoses HSDD. There is also no validated or recommended testosterone level that women should be treated toward as an “optimal” target. When testosterone is prescribed, monitoring has a much more practical purpose: making sure exposure doesn’t become excessive.

Major international consensus recommendations specifically advise against testosterone preparations, including pellets, that produce supraphysiologic testosterone concentrations.

Feeling Better and Needing a Hormone Aren’t the Same Thing

This is probably the most persuasive part of the pellet story: some women feel fantastic on testosterone. That experience shouldn’t be dismissed. If testosterone restores sexual desire and meaningfully improves someone’s quality of life, that’s clinically important.

But there is a distinction worth making. Testosterone is a steroid hormone with powerful effects on the brain and body. Increasing testosterone exposure can produce effects that feel beneficial.

Experiencing those effects does not, by itself, prove that you were deficient in testosterone.

Think about prednisone. Some people taking glucocorticoids experience more energy, improved appetite, less pain, or even an increased sense of well-being. We wouldn’t conclude from that response that they had a cortisol deficiency and therefore needed chronic prednisone. The medication produced an effect.

Testosterone isn’t prednisone, of course. But the principle is useful: a positive response to a hormone does not establish a hormone-deficiency diagnosis, and it doesn’t answer the question of long-term safety. That’s particularly relevant when testosterone is being prescribed for fatigue, energy, mood, or body composition - symptoms for which testosterone therapy has not been established as a treatment. And when testosterone is helping for an appropriate indication, the goal should be to preserve that benefit without creating unnecessary exposure.

When the Dose Overshoots

This is where the inability to titrate becomes important. Excess testosterone can cause acne, oily skin, increased facial or body hair, and androgenic scalp hair loss. With greater exposure, women can develop voice deepening, clitoral enlargement, and other signs of virilization. Some of these changes may not fully reverse. And not every woman develops these effects at exactly the same exposure.

If early androgenic effects appear with an adjustable formulation, the dose can be changed. With a pellet, the treatment has already been implanted and may continue releasing testosterone for months. When the potential side effect is something that may be permanent, I want the ability to intervene early.

That isn’t being overly cautious about testosterone. It’s recognizing that reversibility matters.

What About Long-Term Safety?

The evidence supporting testosterone therapy in women largely comes from treatment intended to avoid supraphysiologic exposure, and long-term safety data remain limited even with physiologic dosing. We know considerably less about repeatedly maintaining women at supraphysiologic testosterone concentrations over many years. This matters precisely because if a woman experiences a meaningful improvement in HSDD, she may reasonably want to continue therapy for years. At that point, the question isn’t whether the benefit matters. Of course it does. The question is whether we can maintain that benefit without exposing her to more testosterone than necessary for the next decade.

One More Consideration: Cost

Pellets also aren’t typically the inexpensive option. They are generally a procedure-based, out-of- pocket treatment and can cost considerably more over time than generic transdermal testosterone.

Cost doesn’t determine whether a treatment is good medicine. There are plenty of expensive therapies worth every penny. But when a more expensive treatment also gives me less ability to adjust the dose, I want a compelling clinical advantage in return. For testosterone pellets, I don’t see one.

My Take

Testosterone isn’t the villain here. For appropriately evaluated postmenopausal women with HSDD, testosterone can meaningfully improve sexual desire and quality of life. My concern is the delivery system.

Pellets can produce supraphysiologic testosterone exposure. Women vary in how they respond. The dose cannot be readily titrated once implanted. And excessive androgen exposure can cause changes that may not always be reversible.

Put those together, and convenience becomes a much less compelling argument. If testosterone is helping a woman, I want to protect that benefit - not take it away. I simply want enough control over the treatment to respond when her body tells us the dose needs to change.

For a hormone this biologically active, the ability to adjust the dose isn’t a minor detail. It’s part of prescribing it well.

Wondering Whether Testosterone Therapy Is Right for You?

If you’re experiencing persistent changes in sexual desire around menopause and wondering whether testosterone might be appropriate, schedule a consultation with me, Dr. Mehdia Amini! We can evaluate your symptoms, medical history, medications, and current hormone therapy, determine whether testosterone is appropriate, and discuss an approach that prioritizes both quality of life and long-term safety.