Testosterone and libido in women: what the evidence actually shows

What did @itsourremedy actually say?

She started testosterone for energy, brain fog, and motivation, not low libido. One week in, she noticed a significant increase in sex drive that she describes as "a very welcome side effect." She also flags a specific UK regulatory issue: women in the UK can only be prescribed testosterone if low libido is listed as a symptom, which she finds absurd given her own experience.

Her core point is honest and worth taking seriously. She's saying she didn't know she had reduced libido until testosterone restored it, which is a genuinely underreported phenomenon. She's not selling anything. She's sharing a lived experience with a drug she's one week into. That context matters when evaluating the claims.

Does the science back this up?

Yes, with some nuance. Testosterone does have evidence behind it for libido in women, particularly those in menopause or perimenopause. The mechanism isn't fully understood, but it's real enough that it earned a position statement from multiple endocrinology bodies.

The 2019 Global Consensus Position Statement on the Use of Testosterone Therapy for Women, published in the Journal of Clinical Endocrinology and Metabolism (Davis et al., 2019), concluded there is level 1 evidence supporting testosterone therapy for hypoactive sexual desire disorder (HSDD) in postmenopausal women. That's not a minor endorsement. Level 1 means randomized controlled trials exist.

Her observation that she didn't know she had low libido until it changed is also consistent with how HSDD presents clinically. The condition is often described as an absence that women don't notice until they have a baseline to compare against. A 2016 study by Simon et al. in Menopause noted that many women with HSDD don't self-identify as having a sexual problem, partly because reduced desire can feel like a new normal.

What did they get wrong (or right)?

She got the core experience right. Testosterone affecting libido within days to a couple of weeks is plausible, though the pharmacokinetics suggest early effects are more likely driven by expectation and mood lift than by tissue-level hormonal changes. Most studies measure outcomes over 12-24 weeks.

The UK prescribing claim needs more precision. She says women in the UK "can only be prescribed testosterone if we have a low sex drive." This is approximately true but slightly oversimplified. NHS England does not license testosterone for women at all. Testogel and other formulations are prescribed off-label, and NICE guidance (NG23, updated 2024) supports testosterone for women with low sexual desire after discussing risks and benefits. The de facto gatekeeping she describes is real, but it's a clinical culture problem, not strictly a legal one.

She didn't make any dangerous claims. She didn't recommend a dose. She didn't suggest others self-prescribe. Credit where it's due.

What should you actually know?

If you're a woman experiencing low energy, brain fog, or motivation changes, testosterone is not automatically the answer, but it's a legitimate clinical conversation to have. These symptoms overlap with thyroid dysfunction, iron deficiency, depression, and perimenopause itself, so proper testing before starting any hormone therapy matters.

The libido effect she's describing is documented but not guaranteed. Davis et al. (2019) found statistically significant improvements in sexual function scores compared to placebo, but response varies. Some women notice nothing. The "teenage boy" comparison she makes is funny, but also a reminder that dosing in women requires careful monitoring. Too much testosterone causes acne, hair loss, voice changes, and clitoral enlargement that may be permanent.

On the prescribing issue: if you live in the UK and are being denied testosterone because you ticked the wrong symptom box, that's worth pushing back on with a GP or seeking a second opinion through a menopause specialist. The British Menopause Society supports access to testosterone for appropriate candidates beyond just libido complaints.

The bottom line

This video is largely credible. She's describing a documented side effect of testosterone therapy, flagging a genuine access problem in UK prescribing, and doing it without overclaiming. The science supports the libido connection. Her one-week timeline for noticing changes is early, and the mechanisms at that stage are murky, but the effect itself is real and well-documented in the literature. Her broader point, that women may not know what they're missing until they have it back, is worth a wider conversation than TikTok usually allows.