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DHEA supplement
Hormone Precursor

DHEA: Benefits, Dosage, Forms & Research

Hormone Precursor

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

TL;DR — Quick Answer

DHEA supplementation at 25-50mg daily can restore age-related declines in DHEA-S levels. Clinical evidence supports its use for adrenal insufficiency, vaginal atrophy in postmenopausal women, and potentially for mood and bone density. It is a controlled or prescription substance in some countries but available OTC in the United States.

Key Facts

What it is
An adrenal steroid hormone precursor to testosterone and estrogen
Primary benefits
  • Restores age-related DHEA-S decline
  • Supports adrenal insufficiency management
  • Improves vaginal atrophy in postmenopausal women
  • May support mood and well-being
  • May support bone mineral density
Typical dosage
25-50mg daily
Evidence level
Moderate
Safety profile
Safe with Caution

What the Research Says

DHEA has a solid evidence base for adrenal insufficiency, where it is considered standard adjunctive therapy. The landmark Arlt et al. (1999) study in the New England Journal of Medicine demonstrated significant quality-of-life improvements in women with adrenal insufficiency taking 50mg daily. For anti-aging applications in healthy older adults, evidence is mixed — some studies show benefits for mood and bone density, while the DHEAge trial showed limited benefits. Intravaginal DHEA (prasterone) received FDA approval in 2016 based on strong RCT evidence for postmenopausal vulvovaginal atrophy.

Benefits of DHEA

  • Adrenal insufficiency — 50mg daily improved well-being, mood, and fatigue in women with adrenal insufficiency (Arlt et al., 1999, NEJM)
  • Vaginal atrophy — intravaginal DHEA (prasterone 6.5mg) is FDA-approved for postmenopausal dyspareunia (Labrie et al., 2016)
  • Bone density — 50mg daily improved hip BMD in older women over 12 months (Jankowski et al., 2006)
  • Mood support — some RCTs show improvements in depressive symptoms, particularly in midlife and older adults
  • Immune function — moderate evidence for enhanced immune response in elderly populations
Did you know?

DHEA has a solid evidence base for adrenal insufficiency, where it is considered standard adjunctive therapy.

Forms of DHEA

FormBioavailabilityBest For
Micronized DHEA CapsulesHighGeneral supplementation — well-absorbed oral form
DHEA Cream (Transdermal)ModerateTargeted delivery — may bypass first-pass liver metabolism
Intravaginal DHEA (Prasterone)High (local)Vaginal atrophy — FDA-approved indication

Dosage Recommendations

General recommendation: 25-50mg daily for adults over 40

Timing: Morning to mimic natural diurnal cortisol/DHEA rhythm • Take with food for best absorption.

Dosage by Condition

ConditionRecommended DoseEvidence
Adrenal insufficiency25-50mg dailyStrong
General anti-aging25-50mg dailyModerate
Vaginal atrophy (intravaginal)6.5mg nightlyStrong
Bone density support50mg dailyModerate

Upper limit: 50mg daily unless medically supervised (higher doses increase androgenic side effects)

Side Effects and Safety

Safety profile: Safe with Caution

Potential Side Effects

  • Acne and oily skin (androgenic effect)
  • Hair loss or unwanted hair growth in women
  • Mood changes (irritability, aggression at higher doses)
  • May elevate estrogen or testosterone beyond desired levels
  • Insomnia if taken late in the day

Drug & Supplement Interactions

  • May increase estrogen and testosterone levels — caution with hormone-sensitive cancers
  • May interact with insulin and diabetes medications (affects insulin sensitivity)
  • Contraindicated with anticoagulants (may affect clotting)
  • May interact with aromatase inhibitors and anti-androgen medications
Check DHEA interactions with other supplements →
BenefitsDosage GuideSide EffectsTypes & FormsResearchFAQ

Related Conditions

Hormonal Imbalance

Related Supplements

PregnenoloneProgesterone Cream (OTC)Adrenal Support

Frequently Asked Questions

Should I test my DHEA-S levels before supplementing?

Yes. DHEA-S blood testing is strongly recommended before starting supplementation. Normal ranges vary by age and sex, and supplementing without knowing your baseline can lead to supraphysiological levels and side effects. A healthcare provider can help interpret results and determine an appropriate dose. Retest DHEA-S levels 4-6 weeks after starting supplementation.

Is DHEA safe for women?

DHEA can be safe for women at appropriate doses (typically 5-25mg daily), which is lower than the standard male dose. Women are more susceptible to androgenic side effects like acne, hair growth, and deepening voice at higher doses because DHEA converts to testosterone. Women should start at 5-10mg and increase only under medical supervision with hormone level monitoring.

At what age should I consider DHEA supplementation?

DHEA levels begin declining in the late 20s and drop significantly after age 40. Most clinicians recommend considering DHEA supplementation only after age 40, and only if DHEA-S blood levels are confirmed to be below the reference range for your age. Younger adults generally do not benefit from supplementation unless they have adrenal insufficiency or a documented deficiency.

References

  1. (). Dehydroepiandrosterone replacement in women with adrenal insufficiency. New England Journal of Medicine. DOI
  2. (). Efficacy of intravaginal dehydroepiandrosterone (DHEA) on moderate to severe dyspareunia and vaginal dryness. Menopause. DOI
  3. (). Effects of dehydroepiandrosterone replacement therapy on bone mineral density in older adults: a randomized, controlled trial. Journal of Clinical Endocrinology & Metabolism. DOI