Testosterone in women: what it actually does, where caution lies, and what is pure marketing
Why I'm telling you this
"Doctor, wouldn't a little testosterone do me good — more energy, more muscle, less fatigue?" More and more women are asking me this.
And the question deserves an honest answer, without trying to sell you anything. Because yes, testosterone is also a female hormone; yes, it has evidence-based uses; but there is also a territory of caution and exaggerated promises that I want to warn you about.
I am Dr. Florian A. Vallecillo Cabrera, and today I want to separate what we know from what is being sold. Because evidence-based medicine is one thing, and the marketing of 'hormonal anti-ageing' is quite another.
Yes, testosterone belongs to you too
We tend to think of testosterone as something 'for men', but women also produce it, in smaller amounts, and it plays a role in several bodily functions. It is no intruder.
With age, its levels gradually decline. And this is part of normal physiology: it is not, in itself, a disease that needs to be 'corrected'.
The only well-supported use
Here I want to be very clear, because this is where the most confusion lies. According to international consensus documents, the only use of testosterone in women backed by sufficient evidence is the treatment of hypoactive sexual desire disorder causing distress — a significant and bothersome drop in desire — in postmenopausal women, after a thorough evaluation and once other causes have been ruled out.
Outside of that indication, the evidence today is insufficient. And this has very practical consequences.
What is NOT proven (and is sold far too often)
There is insufficient evidence to give testosterone to a woman with the aim of gaining energy, improving mood, building muscle, losing weight, enhancing mental performance, or as an 'anti-ageing' or 'hormonal optimisation' treatment.
All of that, so fashionable in certain wellness circles and 'hormonal wellbeing' clinics, runs well ahead of what science can actually claim today. Promising those benefits is not medical rigour: it is marketing. And I think it is important to tell you so plainly.
Why caution is not a whim
Testosterone in women must be used at physiological doses — that is, within your own range — never at male doses. When that threshold is exceeded, unwanted effects can appear: acne, increased hair growth, changes in the skin, and, with high sustained doses, effects that are more difficult to reverse.
And there is a real problem: in many places there are no preparations specifically designed and approved for women, which means products intended for men must be adapted, with the risk of exceeding the appropriate dose. That is why medical supervision and regular testing are not optional.
How it is done properly, when the time is right
When there is an appropriate indication, it is approached with low doses, within the female range, with clinical and laboratory follow-up, monitoring how you respond and what you tolerate. And if, within a reasonable period, it does not deliver the intended benefit, it is discontinued. This is not a treatment to take 'for life just in case'.
And always after a comprehensive evaluation that rules out other causes of the symptom, because — just as with desire — the origin is often not hormonal.
What I want you to take away
Testosterone is a female hormone and has a legitimate, evidence-based use in a very specific context: hypoactive sexual desire disorder with distress in the well-evaluated postmenopausal woman.
Outside of that, be wary of anyone who offers it to you as a formula for energy, muscle, or youth. Neither the evidence supports it, nor does prudence advise it. If you have symptoms that concern you, the best thing I can offer you is not a promise: it is a serious and honest evaluation that distinguishes what medicine can do for you from what is mere smoke and mirrors.
What to remember
- —Testosterone is also a female hormone and naturally declines with age; that decline is not, in itself, a disease.
- —Its only use with sufficient evidence is hypoactive sexual desire disorder causing distress in the well-evaluated postmenopausal woman.
- —There is no evidence to use it for energy, mood, muscle, weight loss, or 'anti-ageing' purposes: that is marketing, not medicine.
- —It must always be used at female physiological doses; high doses cause unwanted effects, some of which are difficult to reverse.
- —It requires prior evaluation, monitoring, and discontinuation if it provides no benefit: it is not a treatment to take 'just in case'.
Sources
Doctor Florian A. Vallecillo Cabrera
The doctor explains
Informational content, written and reviewed by Doctor Florian A. Vallecillo Cabrera. It does not replace an in-person consultation or an individual diagnosis.
