What does DHEA (Dehydroepiandrosterone) do?

Hormone precursor with limited evidence. Intravaginal form may help postmenopausal symptoms; oral use has safety concerns.

Is DHEA (Dehydroepiandrosterone) safe?

Oral DHEA (200 mg/day) significantly lowered HDL cholesterol in a controlled trial — a potential cardiovascular risk

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DHEA (Dehydroepiandrosterone)

Also known as: Dehydroepiandrosterone, Prasterone, DHEA-S, Dehydroepiandrosterone Sulfate

Effective Dosage

No established dose from provided studies

What the Science Says

DHEA is a hormone naturally produced by the adrenal glands that serves as a building block for both estrogen and testosterone in the body. One small clinical trial found that daily intravaginal DHEA (6.5 mg) significantly improved sexual function in postmenopausal women with vaginal atrophy over 52 weeks, with improvements in desire, lubrication, and pain. DHEA levels in the body are also used as a biomarker in research on conditions like PCOS, pesticide exposure, and adrenal health, though these studies do not directly test DHEA supplementation.

What It Doesn't Do

Won't reliably boost testosterone or estrogen systemically — the intravaginal form studied works locally, not body-wide. No evidence from these studies that it builds muscle or improves athletic performance. A pilot study in lupus patients found oral DHEA actually lowered HDL (good cholesterol) and may impair blood vessel function — it did not help prevent bone loss or atherosclerosis as marketed. Don't assume it's safe just because it's 'natural' — it's a hormone with real side effects.

Evidence-Based Benefits

DHEA and its sulfated form DHEA-S are endogenous hormones that rise in response to acute stress (PMID: 40600860) and fluctuate across the menstrual cycle, peaking at ovulation (PMID: 41593608). DHEA(S) is proposed to oppose cortisol's effects on brain plasticity and memory, with adrenarche (the surge of DHEA at ages 6-8) potentially moderating cortisol-driven sensitivity to early adversity (PMID: 41736470). Vaginal DHEA (prasterone) is an FDA-approved treatment for genitourinary syndrome of menopause (GSM), with evidence supporting improvements in vaginal, sexual, and urinary outcomes (PMID: 41892504).

Weak Evidence

Effective at: No established dose from provided studies

Source: auto-research

Absorption & Bioavailability

Unknown for oral form based on provided studies. Intravaginal administration appears to act locally with minimal change in systemic blood levels of DHEA or its metabolites (estradiol, testosterone), suggesting limited systemic absorption via that route.

Red Flags to Watch For

Oral DHEA (200 mg/day) significantly lowered HDL cholesterol in a controlled trial — a potential cardiovascular risk
Trend toward impaired endothelial (blood vessel) function seen with oral DHEA in lupus patients
DHEA is a hormone precursor — unsupervised use can disrupt the body's hormonal balance
967 registered supplement products exist despite very limited clinical evidence for most marketed uses
Not appropriate for adolescents, pregnant women, or people with hormone-sensitive conditions without medical supervision
Most provided research papers mention DHEA only as a biomarker, not as a tested supplement — evidence base is very thin

Research Sources

PubMed
NIH DSLD

This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-06