11 Things to Know About DHEA Before Using It in Menopause
The DHEA conversation used to make my eyes glaze over — it felt like alphabet soup mixed with bodybuilder supplement culture. Then I learned that the vaginal version is actually a legitimate, well-studied option for women who can't or won't use estrogen, and suddenly it felt worth paying attention to. The oral version is a different story, and conflating the two is where a lot of women get led astray.
Learn more about Rose →DHEA is a hormone your body already makes — and menopause drops it significantly
Dehydroepiandrosterone (DHEA) is produced mainly by the adrenal glands and serves as a precursor to both estrogen and testosterone. Levels peak in a person's mid-twenties and decline steadily with age, falling by roughly 80% by the time someone reaches their seventies. This natural decline accelerates around perimenopause, which is part of why DHEA has attracted so much interest as a supplement.
There are two completely different forms of DHEA — and they don't have the same evidence base
Oral DHEA is a dietary supplement sold over the counter in many countries, with wide variation in dose and quality. Intravaginal DHEA — known pharmacologically as prasterone — is an FDA-approved prescription treatment specifically for vulvovaginal atrophy (now called genitourinary syndrome of menopause, or GSM). Lumping them together is one of the biggest sources of confusion in this space, because the research behind each is entirely different in quality and scope.
Intravaginal prasterone has strong, replicated clinical trial evidence for GSM
Multiple randomized controlled trials, including the LABRIE studies published between 2015 and 2018, showed that daily intravaginal prasterone (6.5 mg) significantly improved vaginal dryness, pain with sex, and tissue integrity compared to placebo. The FDA approved it in 2016 specifically for dyspareunia — painful intercourse — caused by menopause-related vaginal changes. This is one of the few non-estrogen options for GSM with a genuinely robust evidence trail.
Prasterone works locally — systemic absorption is minimal and blood hormone levels stay low
When DHEA is delivered intravaginally, it is converted locally into estrogen and testosterone directly within vaginal tissue, which is what restores the mucosal lining. Studies have consistently shown that serum estrogen and testosterone levels remain within normal postmenopausal ranges, meaning the hormone action stays where it's needed. This local mechanism is why prasterone is often considered for women who are cautious about systemic hormone therapy.
Oral DHEA's evidence for menopause symptoms is genuinely mixed
Several trials have looked at oral DHEA for hot flashes, mood, libido, and cognitive function in menopausal women, and results have been inconsistent — some show modest benefits, others show no difference from placebo. A 2015 Cochrane-adjacent systematic review found insufficient evidence to recommend oral DHEA for general menopause symptom relief. The honest summary is that it may help some women and do nothing for others, and the research hasn't yet identified who is likely to respond.
For libido specifically, oral DHEA shows some promise — but the effect size is modest
A handful of randomized trials, including work by Panjari and Davis, found that oral DHEA at doses of 50 mg daily produced small but statistically significant improvements in sexual function scores compared to placebo in postmenopausal women. The effect was real but not dramatic, and it's worth noting that testosterone therapy has considerably stronger evidence for hypoactive sexual desire disorder in menopause. Oral DHEA may be a conversation worth having with a clinician, but it shouldn't be presented as a well-established solution.
Over-the-counter oral DHEA supplements are largely unregulated and highly variable in quality
In the United States, oral DHEA is classified as a dietary supplement rather than a drug, which means manufacturers are not required to prove potency, purity, or safety before selling it. Independent lab testing has found that many DHEA supplements contain significantly more or less than the stated dose, and contamination with other hormones has been documented. Women considering oral DHEA should look for products that have been third-party tested for quality, though no specific brands can be recommended here.
DHEA can convert to testosterone — and androgenic side effects are a real possibility
Because DHEA is a precursor hormone, the body can convert it into testosterone, and at higher oral doses some women notice acne, oily skin, unwanted facial hair, or changes in voice. These androgenic effects are more likely with oral supplementation than with intravaginal prasterone, where local conversion is the point but systemic exposure stays low. Anyone who notices these changes should stop and talk to a clinician rather than adjusting the dose independently.
The bone and cognition claims around oral DHEA are largely speculative at this stage
Some studies and a significant amount of marketing material suggest that oral DHEA may support bone density and cognitive function in aging women, citing its precursor relationship to estrogen. However, the clinical trial evidence is inconsistent and generally underpowered, and no regulatory body has approved oral DHEA for these indications. Women hearing these claims should treat them as hypothesis-generating rather than established benefit.
Women with hormone-sensitive conditions should exercise real caution with any form of DHEA
Because DHEA converts to both estrogen and testosterone, anyone with a history of hormone-sensitive cancers — including certain breast and ovarian cancers — should discuss DHEA with their oncologist before considering it in any form. Even intravaginal prasterone, despite its low systemic absorption, has not been studied in women with active or recent hormone-sensitive malignancies, so it remains a clinical grey area. The absence of risk data is not the same as evidence of safety.
A blood test before starting oral DHEA is genuinely useful — not just a formality
Baseline DHEA-S levels (the sulfate form measured in blood) vary enormously between individuals, and supplementing when levels are already normal or high is unlikely to help and may increase side effect risk. A simple blood test can clarify whether DHEA levels are actually low for a woman's age, giving a clinician something to work with when deciding whether oral supplementation is even logical. This is one context where the test genuinely changes the decision, not just the paperwork.
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