DHEA (dehydroepiandrosterone) is a hormone your adrenal glands produce that serves as a building block for estrogen and testosterone. In women, it plays a role in sexual health, bone strength, and mood, though its levels drop steadily with age. By your 70s, your DHEA levels may be less than a tenth of what they were in your 20s.
How DHEA Works in a Woman’s Body
DHEA itself isn’t the final product. It’s a precursor hormone, meaning your body converts it into other hormones depending on what each tissue needs. Inside cells that carry the right enzymes, DHEA gets transformed first into androstenedione, then into testosterone or estradiol (the most active form of estrogen). This conversion happens locally, inside specific tissues like bone, skin, the brain, and vaginal tissue, rather than flooding the entire body with sex hormones. Scientists call this an “intracrine” process: the hormones are made and used within the same cells.
This is why DHEA matters more in women than most people realize. After menopause, when the ovaries produce far less estrogen and testosterone directly, these local conversions from DHEA become a more important source of sex hormones in tissues throughout the body.
Normal DHEA Levels by Age
DHEA-S (the sulfate form measured in blood tests) peaks in your late 20s and declines every decade after. Here’s what the reference ranges look like for women, according to Mayo Clinic Laboratories:
- Ages 18 to 30: 83 to 377 mcg/dL
- Ages 31 to 40: 45 to 295 mcg/dL
- Ages 41 to 50: 27 to 240 mcg/dL
- Ages 51 to 60: 16 to 195 mcg/dL
- Ages 61 to 70: 9.7 to 159 mcg/dL
- Ages 71 and older: 5.3 to 124 mcg/dL
These ranges are wide, so a “normal” result doesn’t always mean your levels are optimal for you. The steady decline is universal, though, and it’s the main reason women look into supplementation as they age.
Sexual Health and Arousal
One of the better-studied uses of DHEA in women involves low sexual desire, clinically called hypoactive sexual desire disorder (HSDD). In a randomized, double-blind trial of postmenopausal women with HSDD, those taking 100 mg of DHEA daily for six weeks showed significant improvement in sexual arousal and satisfaction compared to placebo. Interestingly, the same study found no benefit in men, suggesting DHEA’s effect on sexual function is more pronounced in women.
The likely explanation ties back to that conversion process. In postmenopausal women with low baseline hormone levels, supplemental DHEA provides raw material that vaginal and other tissues can convert into estrogen and testosterone locally. This can improve arousal, lubrication, and comfort without dramatically raising hormone levels in the bloodstream.
Bone Density After Menopause
DHEA appears to benefit bones, particularly in women who are already losing density. In postmenopausal women on glucocorticoid therapy (a medication class known to weaken bones), DHEA supplementation produced a significant increase in bone mineral density at both the lumbar spine and the femoral neck after six and twelve months of treatment. The effect makes biological sense: DHEA’s conversion into estrogen in bone tissue helps slow the breakdown that accelerates after menopause.
That said, DHEA is not a substitute for established osteoporosis treatments. The bone density gains seen in studies are modest, and most of the research has been done in women who were already at heightened risk for bone loss.
Mood and Depression
DHEA may have a mild antidepressant effect, particularly in people whose levels are already low. The Mayo Clinic notes that DHEA “might be more effective at treating depression than placebo, especially in people with low DHEA levels.” However, the evidence isn’t strong enough for DHEA to be recommended as a standalone treatment for depression.
There’s also a meaningful caution here. DHEA can worsen psychiatric disorders and increase the risk of mania in people with mood disorders like bipolar disorder. For women already managing a mental health condition, this makes DHEA a supplement to approach carefully rather than casually.
Adrenal Insufficiency
Women with Addison’s disease (primary adrenal insufficiency) produce very little DHEA on their own. A year-long randomized trial gave 106 people with Addison’s disease, including 62 women, either 50 mg of DHEA daily or a placebo. At the start of the trial, participants scored significantly worse on measures of psychological well-being compared to the general population. After 12 months, one key measure of well-being improved significantly in the DHEA group.
The results were mixed overall, though. The same trial found no significant benefit for fatigue, cognitive function, or sexual function. DHEA replacement in adrenal insufficiency addresses a real hormonal gap, but it doesn’t resolve all the symptoms women with the condition experience.
Fertility and IVF
DHEA has gained popularity as a supplement for women undergoing IVF, particularly those told they have diminished ovarian reserve or poor ovarian response. The theory is that DHEA boosts the hormonal environment around developing eggs, improving their quality and number.
The evidence doesn’t support this. The UK’s Human Fertilisation and Embryology Authority (HFEA) reviewed the moderate to high-quality studies and gave DHEA its lowest rating for both egg retrieval numbers and live birth rates in women with diminished ovarian reserve. Their conclusion was direct: collectively, the studies did not show any impact on egg retrieval or live births. Some fertility clinics still recommend it, but the regulatory body responsible for evaluating IVF add-ons considers it ineffective for this purpose.
Side Effects and Risks
Because DHEA converts into androgens like testosterone and dihydrotestosterone, the most common side effects in women are androgenic: acne, oily skin, unwanted facial or body hair growth, and in some cases, hair thinning on the scalp. These effects are dose-dependent, meaning they’re more likely at higher doses and less common at lower ones.
The bigger concern is for women with a history of hormone-sensitive conditions. Since DHEA feeds into both estrogen and testosterone production, it can theoretically stimulate tissues that respond to those hormones. Women with a history of breast, ovarian, or uterine conditions that are hormone-driven should be especially cautious. DHEA is also not well-regulated as a supplement in many countries, meaning the actual dose in a given product may not match the label.
What Most Women Actually Need to Know
DHEA is a real hormone with real effects, not just a wellness trend. Its strongest evidence in women is for improving sexual arousal after menopause, modest bone density support, and replacing what’s missing in adrenal insufficiency. Its weakest evidence is in fertility treatment, where well-designed studies have repeatedly shown no benefit. For mood, the effects exist but are small and come with psychiatric risks that shouldn’t be dismissed.
Doses in clinical studies have ranged from 50 mg daily for adrenal insufficiency to 100 mg daily for sexual health, but these were supervised medical settings, not self-directed supplementation. Blood levels of DHEA-S vary widely between individuals, and the same dose can push one woman into a normal range while giving another androgenic side effects. Testing your DHEA-S level before and during supplementation is the only way to know whether a given dose is doing what you want it to.