The Desire Clinic
The honest answer first
Right — here's the thing that surprises almost every woman who hears it for the first time. Testosterone is not a male hormone. It's a human hormone. Women make it, need it, and across the reproductive years actually circulate more of it than oestrogen by weight. It's just that nobody ever mentioned it, because the entire cultural conversation about testosterone got handed to men somewhere around 1935 and never came back.
So when your desire quietly flattens and someone says "have you thought about your hormones?", they're usually pointing at oestrogen. That's half the picture at most.
The honest answer to "is my testosterone the problem?" is: it might be part of it, and it's absolutely worth investigating — but it is almost never the whole story, and anyone who tells you it is should make you suspicious. Desire is not a single dial. Treating it as one is how women end up disappointed after chasing a number on a blood test.
What you deserve is a proper look at the whole picture, with testosterone as one of the things examined properly rather than the thing ignored entirely or the thing blamed for everything. Both of those extremes are common. Neither is good medicine.
The science second
Here's the bit worth knowing, delivered over a glass of wine rather than across a consulting desk.
Where it comes from. Women produce testosterone in the ovaries and the adrenal glands, plus conversion from precursor hormones in fat, skin and muscle tissue. It's part of the same family as oestrogen — your body actually makes oestrogen from testosterone.
What it does. In women it contributes to sexual desire and responsiveness, but also to energy, mood, muscle and bone. It's one of the accelerators in the desire system — alongside dopamine and noradrenaline — pushing against the brakes of stress, fatigue, serotonin and prolactin. Desire is that balance, not a single hormone.
It declines gradually, not off a cliff. Here's the detail that changes how you think about it: female testosterone levels drift downwards steadily from roughly the mid-twenties. By the time a woman reaches her late forties she typically has around half the circulating testosterone she had at twenty-five. Unlike the menopause transition — which is an event with a before and an after — this is a slow slide. Which is exactly why it's so easy to miss, and so easy to write off as "just getting older."
Some drops aren't gradual at all. Surgical removal of the ovaries causes a sudden, substantial fall. Certain pituitary and adrenal conditions do too. And this is where it gets genuinely counter-intuitive: the combined contraceptive pill and oral HRT both raise a protein called sex hormone binding globulin, which mops up free testosterone and takes it out of circulation. Your total level can look perfectly respectable on paper while the amount actually available to your tissues is markedly reduced.
And here's the frustrating part. There is no reliable blood-test threshold that defines "low testosterone" in women. The assays weren't designed for the low levels women naturally sit at, the normal range is wide, and levels swing across the day and the cycle. This isn't a gap in your knowledge — it's a genuine limitation of the science. Which is why testosterone in women is a clinical diagnosis built on symptoms and history, with bloods as supporting evidence, and never a number read off a printout in isolation.
On the treatment question. Testosterone therapy for women is used in UK clinical practice for low sexual desire in specific, carefully assessed circumstances — but it isn't a first move, it isn't right for everyone, and in the UK there is currently no product formulated and licensed specifically for women, which means it's prescribed off-label under specialist guidance with proper monitoring. That's not a scandal; it's just the honest regulatory position, and it's why this belongs in a considered clinical conversation rather than an internet checkout. Dosing matters enormously. Monitoring matters enormously. And the evidence is strongest in particular groups of women, not all of them.
What a proper assessment looks like
Not a finger-prick kit and a PDF. A real assessment does this.
Takes the story first. When did desire change? Gradually or suddenly? Is it absent altogether, or present but hard to reach? Has anything else shifted — energy, mood, sleep, muscle strength, brain fog? The pattern tells a clinician far more than any single test.
Uses a validated screener. Structured tools such as the Decreased Sexual Desire Screener establish whether low desire is persistent and genuinely distressing to you, rather than normal variation. That distinction is what separates a recognised medical condition from an ordinary quiet patch.
Checks the whole hormonal picture, not one hormone. Total testosterone, sex hormone binding globulin and calculated free testosterone together — because as above, the total on its own can mislead. Alongside thyroid function, prolactin, iron and ferritin, and where relevant the wider menopausal picture. If you're in your forties or fifties, this overlaps heavily with what happens to libido during perimenopause and menopause, and the two need considering together rather than separately.
Reviews the medicine cabinet. Hormonal contraception, antidepressants, blood-pressure medicines and others all affect desire through different routes. It is entirely possible to have two causes running at once — and if only one gets addressed, nothing much improves.
Looks beyond hormones. Sleep, stress load, relationship context, pain during sex, mental health. A hormone result never overrides the rest of a life.
Produces a plan with options and honesty attached. Including what the evidence supports, what it doesn't, what monitoring would be needed, and what to do if the first approach isn't the answer. A good pathway has a next step for everyone — never a dead end.
Where to start
If you've been quietly wondering whether your hormones explain the thing you haven't mentioned to anyone — that's a reasonable question, and it deserves a proper answer rather than a forum thread.
Our free self-assessment takes about three minutes and uses the same validated screening questions clinicians use. It won't diagnose you and it won't sell you anything. It will give you a clear, structured read on what's likely going on — and something concrete to bring to a clinician instead of trying to find the words on the spot.
Take the private Desire Check →
Where did your desire go?
Three private minutes. Nothing sent, nothing stored. Just a place to begin.
Take the private Desire Check
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