Testosterone therapy for women: hype vs. actual evidence

What did @jessjordan523 actually say?

She said she was exhausted, got blood work, found out her testosterone was "incredibly low," and decided to start testosterone injections. She claims TRT can "drastically increase energy levels," slow aging, and boost libido in women. She also says testosterone deficiency in women "is not talked about a lot" and wants to normalize testing for it.

To be clear: she is not making outrageous claims. She is sharing a personal medical experience, not prescribing a protocol. She is excited, she just did her first injection, and she is being transparent about getting follow-up labs. That is actually more responsible than most TRT content on this platform. But some of what she implies about testosterone and aging, and how low is "incredibly low," deserves a harder look.

Does the science back this up?

Partially, yes. The evidence for testosterone improving sexual function in women with low levels is actually the strongest part of her claims. The fatigue connection is murkier, and the anti-aging angle is the least supported.

A 2019 systematic review by Davis et al. in The Lancet Diabetes and Endocrinology analyzed 36 randomized controlled trials and found testosterone therapy significantly improved sexual function in postmenopausal women, including desire, arousal, and satisfaction. That is real, peer-reviewed evidence. On fatigue, the picture is messier. Fatigue in women is driven by thyroid dysfunction, iron deficiency, sleep disorders, depression, and cortisol issues far more commonly than by testosterone deficiency alone. A 2022 review in Endocrine Reviews by Islam et al. noted that while testosterone may play a role in energy and mood, the evidence is not strong enough to recommend it specifically for fatigue as a primary symptom. The anti-aging claim she mentions is the loosest: there is no robust clinical evidence that testosterone therapy meaningfully slows the aging process in women beyond effects on muscle mass and bone density at therapeutic doses.

What did they get wrong or right?

She got the libido claim largely right. She got the fatigue and anti-aging claims partly wrong, or at least overstated. She also glossed over something important: there is no FDA-approved testosterone product for women in the United States.

The Davis 2019 Lancet review is about as strong as it gets for the libido claim. Credit where it is due. But when she says testosterone can "drastically increase energy levels," that word "drastically" is doing a lot of heavy lifting with thin evidence behind it. Fatigue has dozens of causes. Starting testosterone before ruling out thyroid disease, anemia, or sleep apnea is putting the cart before the horse, and we do not know from her video whether those were checked.

The bigger issue she does not address: the FDA has not approved any testosterone formulation specifically for women. Clinicians who prescribe it are doing so off-label, using compounded preparations or male-formulated products at lower doses. That is not automatically wrong, but it is context a viewer deserves to have. A 2021 position statement from the Endocrine Society acknowledges off-label use can be appropriate in certain cases but calls for careful monitoring, which she does mention planning to do.

What should you actually know?

Testing testosterone in women is genuinely underutilized, and fatigue and low libido are real symptoms worth investigating. But testosterone is not a first-line answer for tiredness, and anyone starting it should understand what "low" actually means on a lab report designed for women.

Reference ranges for testosterone in women vary significantly by lab, age, and assay method. A level that looks "incredibly low" on one lab's scale may be within normal range on another. The Endocrine Society has flagged the lack of standardized assays for women as a real clinical problem. Before attributing fatigue entirely to low testosterone, a thorough workup should include thyroid panel, ferritin, B12, cortisol, and a sleep assessment.

If testosterone therapy is pursued, the Global Consensus Position Statement on the Use of Testosterone Therapy for Women (Baber et al., 2019, published simultaneously in multiple journals including The Journal of Clinical Endocrinology and Metabolism) recommends aiming for physiological premenopausal levels, not supraphysiological ones, and monitoring for androgenic side effects including acne, hair changes, and voice deepening. Her plan to recheck labs in about a month is the right instinct. The concern is that many patients who start this journey on TikTok momentum do not have a clinician doing that follow-up rigorously.