DHEA-S (DHEA Sulfate) Biomarker Testing
A DHEA-S test measures adrenal androgen output to help explain symptoms and guide follow-up, with easy ordering and results through Vitals Vault/Quest.
With Vitals Vault, you have access to a comprehensive range of biomarker tests.
DHEA-S (dehydroepiandrosterone sulfate) is one of the most useful blood tests for understanding how much androgen your adrenal glands are producing. Because it is a stable “storage” form of DHEA in the bloodstream, it often gives a clearer signal than DHEA itself.
This test is commonly used when you are trying to make sense of symptoms that can overlap with many conditions, such as new or worsening acne, unwanted facial or body hair, scalp hair thinning, irregular periods, or changes in libido. It can also be part of a workup for early puberty or signs of androgen excess.
Your number is only one piece of the picture. The most helpful interpretation comes from pairing DHEA-S with your symptoms, your age and sex, and related hormone tests, and then deciding with a clinician what follow-up makes sense.
Do I need a DHEA-S (DHEA Sulfate) test?
You might consider a DHEA-S test if you have signs that your body is making more androgens than expected. In many people, that shows up as persistent acne, increased facial or body hair (hirsutism), scalp hair thinning, or menstrual cycle changes. If you are male, it may be ordered when there are concerns about adrenal androgen production or when other hormone results do not match your symptoms.
DHEA-S is also used when your clinician is trying to determine where excess androgens are coming from. Broadly, androgens can be produced by the ovaries/testes and by the adrenal glands. Because DHEA-S is produced mostly by the adrenal glands, it can help point the evaluation in the right direction.
You may also see it ordered in evaluations for early puberty, virilization (development of more typically male-pattern features), or when there is concern for an adrenal source of hormone imbalance. If you are already on hormone-related treatment, DHEA-S can be a way to monitor whether adrenal androgen output is shifting over time.
Testing supports clinician-directed care, but it cannot diagnose a condition by itself. If your result is abnormal, the next step is usually confirming the pattern with related labs and reviewing medications, supplements, and timing before making any conclusions.
This is a standard blood test performed in a CLIA-certified laboratory; results should be interpreted in clinical context and are not a standalone diagnosis.
Lab testing
Ready to order a DHEA-S test through Vitals Vault?
Schedule online, results typically within about a week
Clear reporting and optional clinician context
HSA/FSA eligible where applicable
Get this test with Vitals Vault
Vitals Vault lets you order a DHEA-S test directly and complete your blood draw through the Quest network. That can be helpful if you are comparing options, rechecking a prior abnormal value, or building a clearer hormone picture to discuss with your clinician.
After your results are ready, you can use PocketMD to get a plain-language explanation of what your number may suggest, what common follow-up tests are, and what questions to bring to your next appointment. This is especially useful for DHEA-S because the “right” interpretation depends on age, sex, symptoms, and companion markers.
If you are tracking a change over time, Vitals Vault makes it easy to reorder the same test so you can compare trends using the same lab method whenever possible. That is often more informative than a single snapshot.
- Order online and draw at a Quest location
- PocketMD guidance to help you plan next steps
- Easy retesting to track trends over time
Key benefits of DHEA-S (DHEA Sulfate) testing
- Helps estimate adrenal androgen production, which is a common source of androgen-related symptoms.
- Supports evaluation of acne, hirsutism, and scalp hair thinning by clarifying whether androgens are part of the picture.
- Helps distinguish adrenal-driven androgen excess from ovarian/testicular sources when paired with other hormones.
- Provides a relatively stable hormone signal compared with DHEA, which fluctuates more throughout the day.
- Can guide follow-up testing when menstrual cycles are irregular or when PCOS is being considered.
- Helps monitor changes over time if you are adjusting hormone-related care under clinician supervision.
- Creates a clearer, more actionable lab “story” when reviewed alongside testosterone, SHBG, and 17-hydroxyprogesterone.
What is DHEA-S (DHEA Sulfate)?
DHEA-S is a sulfated form of DHEA (dehydroepiandrosterone), a hormone made primarily by your adrenal glands. The “S” stands for sulfate, which makes the hormone more water-soluble and allows it to circulate at higher, steadier levels in your blood.
DHEA-S acts as a precursor hormone. Your body can convert it into other androgens (such as testosterone and androstenedione) and, in some tissues, into estrogens. Because it is produced mostly by the adrenal glands, it is often used as a marker of adrenal androgen output.
DHEA-S levels naturally change with age. They tend to rise through childhood and puberty, peak in early adulthood, and gradually decline over time. That is why the lab’s reference interval is usually age- and sex-specific, and why comparing your result to the correct range matters.
What do my DHEA-S (DHEA Sulfate) results mean?
Low DHEA-S levels
A low DHEA-S result can reflect lower adrenal androgen production, which is more common with aging but can also occur with certain adrenal or pituitary conditions. If your value is unexpectedly low for your age, your clinician may look at other adrenal hormones (such as cortisol and ACTH) and review symptoms like unexplained fatigue, low blood pressure, or unintentional weight loss. Low DHEA-S can also be seen with chronic illness or after prolonged use of glucocorticoid medications (steroids).
In-range (optimal) DHEA-S levels
An in-range DHEA-S level generally suggests your adrenal androgen output is typical for your age and sex. If you still have androgen-related symptoms, the next step is often to look at other parts of the pathway, such as total and free testosterone, sex hormone–binding globulin (SHBG), and sometimes androstenedione. In other words, a normal DHEA-S does not rule out hormone-related causes, but it makes a strong adrenal source less likely.
High DHEA-S levels
A high DHEA-S result suggests increased adrenal androgen production. In people assigned female at birth, this pattern can be seen in PCOS, but it can also occur with nonclassic congenital adrenal hyperplasia (often screened with 17-hydroxyprogesterone) or, less commonly, an adrenal tumor. The degree of elevation and how quickly symptoms appeared matter; sudden, rapidly progressive symptoms deserve prompt clinical review. Your clinician may recommend repeat testing and additional hormones to confirm the source before any imaging is considered.
Factors that influence DHEA-S
Age is one of the biggest drivers of DHEA-S, so the same number can mean different things at different life stages. Pregnancy, puberty, and menopause can shift hormone patterns, and so can stress and illness. Medications and hormones can also affect results, including glucocorticoids, some anti-seizure medicines, and hormonal contraception; DHEA supplements can raise DHEA-S directly. Lab-to-lab reference ranges and units vary, so it is best to interpret your value using the range printed on your report and, when possible, to retest at the same lab for trend tracking.
What’s included
Frequently Asked Questions
What is the difference between DHEA and DHEA-S?
DHEA-S is the sulfated, more stable form that circulates in higher amounts and changes more slowly day to day. DHEA (without the “S”) fluctuates more and is less commonly used as the primary screening test for adrenal androgen output.
Do I need to fast for a DHEA-S blood test?
Fasting is usually not required for DHEA-S. If you are getting other tests at the same time (like lipids or glucose/insulin), fasting instructions may apply to the overall order, so follow the directions on your lab requisition.
When is the best time of day to test DHEA-S?
DHEA-S is fairly stable across the day compared with many other hormones, so timing is less critical. Still, if you are tracking trends, try to test at a similar time of day each time to reduce variability.
Can high DHEA-S mean PCOS?
It can be consistent with PCOS, but it is not specific enough to diagnose PCOS on its own. PCOS is diagnosed using a combination of symptoms, menstrual/ovulation history, and labs (often including testosterone and SHBG), and sometimes ultrasound findings, after other causes are ruled out.
What follow-up tests are commonly ordered with DHEA-S?
Common companions include total testosterone, free testosterone (or calculated free testosterone), SHBG, androstenedione, and 17-hydroxyprogesterone. Depending on your situation, a clinician may also check prolactin, TSH, LH/FSH, cortisol, or metabolic markers such as fasting glucose and insulin.
How often should I retest DHEA-S?
Retesting depends on why you tested in the first place. If you are confirming an unexpected result, a clinician may repeat it in a few weeks after reviewing medications, supplements, and timing; if you are monitoring a treatment plan, retesting is often done every few months. For trend tracking, consistency (same lab, similar timing) is usually more important than frequent testing.