DHEA: Uses, Benefits, Dosage & Safety

Last updated: June 2026 · Reviewed by the FactoWiki Editorial Team for clarity and source accuracy

What is DHEA?

DHEA (dehydroepiandrosterone) is a hormone produced by the adrenal glands that serves as a building block for the sex hormones estrogen and testosterone. Levels peak in early adulthood and fall steadily with age, which is the basis for its marketing as an 'anti-aging' and vitality supplement. Crucially, DHEA is a hormone — not a vitamin or herb — and it is banned in competitive sport for that reason.

What DHEA is commonly used for

In supplements, DHEA is marketed within men's vitality and anti-aging products for energy, libido, mood and bone, and is also used for menopausal symptoms. It is sold as a vitality booster, though the evidence is strongest — and still modest — in people who are genuinely deficient.

How DHEA works

As a precursor hormone, DHEA is converted in the body into testosterone and estrogen. In people whose adrenal glands do not make enough — such as those with Addison's disease — restoring DHEA can modestly improve wellbeing and, in some studies, bone density. In healthy people with normal levels, adding more produces small or trivial effects, because the body is already supplied. That hormonal nature is also why it has genuine side effects.

What the evidence says

Here's an honest snapshot of what published research suggests about DHEA — including where the evidence is limited.

• A systematic review and meta-analysis of randomised trials in women with adrenal insufficiency found DHEA produced only a small, perhaps trivial improvement in quality of life and depression, no effect on anxiety or sexual wellbeing, and insufficient evidence to support routine use. (PubMed)
• A long-term randomised trial in primary adrenal insufficiency found DHEA reversed bone loss at the femoral neck and modestly improved one wellbeing measure, but did not help fatigue, cognition or sexual function, and caused mild androgenic side effects. (PubMed)
• General background on DHEA, including its hormonal nature and safety, is summarised by reputable health references. (MedlinePlus)

Typical dosage used in studies

Studies often use around 25–50 mg per day. Because it is a hormone, 'more' is not safer, and the quality control of over-the-counter DHEA products is notoriously inconsistent. This is general information, not a recommendation — and DHEA is a hormone that ideally involves medical oversight.

Side effects and safety

DHEA's side effects reflect its hormonal action: acne, oily skin, hair thinning or unwanted hair growth, and in women voice changes; in men, possible breast tenderness. There are theoretical concerns about hormone-sensitive cancers such as breast and prostate. It is banned in sport by the World Anti-Doping Agency.

Medication interactions and who should avoid DHEA

Sources & further reading

The evidence summary above is drawn from these sources. For general, authoritative background you can also consult:

• PubMed-indexed study (PMID 19773400)
• PubMed-indexed study (PMID 18000094)
• MedlinePlus
• NIH Office of Dietary Supplements
• NIH National Center for Complementary and Integrative Health

Frequently asked questions

Does DHEA work for anti-aging?

In healthy people with normal levels, the benefits are small or trivial. The clearer effects are in people who are genuinely deficient, such as those with adrenal insufficiency.

Is DHEA safe?

It is a hormone with real side effects — acne, hair changes and theoretical hormone-sensitive cancer concerns — so it is not a casual supplement and ideally involves medical oversight.

Does DHEA boost testosterone or libido?

It is a precursor to sex hormones, and some studies in deficient people show modest libido or wellbeing benefits, but results in healthy people are inconsistent.

Is DHEA allowed in sport?

No. It is banned by the World Anti-Doping Agency as a prohormone, so competitive athletes should avoid it.

What dose is used in studies?

Studies often use 25–50 mg per day, but product quality varies widely and more is not safer. This is general information, not a recommendation.