

Feeling low on energy? Noticing a drop in libido or increased hair loss?The issue might be linked to an imbalance in a lesser-known but crucial hormone: DHEA-S (Dehydroepiandrosterone Sulfate).In this article from Dalili Medical, we take you on a complete journey through the DHEA-S test — what it is, why it's ordered, how it relates to your energy and sexual health, and how to interpret your results accurately.
DHEA-S (Dehydroepiandrosterone Sulfate) is a stable and stored form of the hormone DHEA. It is primarily produced by the adrenal glands and, to a lesser extent, by the ovaries or testes.
DHEA-S acts as a precursor to both male (like testosterone) and female (like estrogen) sex hormones.
Doctors may request a DHEA-S test in various situations for both men and women to assess:
Low energy or chronic fatigue
⬇️ Decreased libido in men or women
Low testosterone levels
Muscle mass loss or weakness
⚖️ Hormonal imbalances
Suspected adrenal gland disorders
Masculinization symptoms in women (e.g., excess hair growth, acne)
A blood sample is taken from a vein in the arm.
No fasting is required.
The test is best done in the morning when hormone levels are highest.
Results are usually available within 1–3 days.
Values vary based on age and sex, but general reference ranges are:
Group | Normal Level (μg/dL) |
---|---|
Men (20–50 years) | 280 – 640 |
Women (20–50 years) | 65 – 380 |
Over 50 (both) | Declines gradually |
⚠️ Reference ranges may differ between laboratories.
1. Boosts Physical and Mental Energy
DHEA-S is associated with general vitality and alertness.
2. Enhances Libido
As a testosterone precursor, low DHEA-S can reduce sex drive and erectile function in men, or sexual responsiveness in women.
3. Stress & Aging Protection
It helps balance mood and is sometimes studied for its anti-aging potential.
4. Muscle Support & Fat Metabolism
It plays a role in muscle growth and fat reduction, especially in athletes.
May indicate:
Adrenal gland overactivity (e.g., Cushing’s syndrome)
Adrenal or ovarian tumors
Polycystic ovary syndrome (PCOS) in women
Use of DHEA supplements or steroids
Could signal:
Adrenal insufficiency (Addison’s disease)
Natural age-related decline
Chronic stress or depression
Testicular failure or ovarian dysfunction
Hormone | DHEA | DHEA-S (Tested) |
---|---|---|
Type | Active hormone | Stored/stable form |
Half-life | Short | Longer |
Clinical Use | Less common | ✅ Most commonly tested |
Yes, but only under strict medical supervision.
While DHEA supplements are used in some countries to improve mood, libido, and energy, they may cause side effects like:
Acne
Hormonal imbalance
Hair loss
Increased risk of prostate or breast cancer
Is DHEA-S important only for women?
No. It’s vital for both men and women, especially in regulating energy, mood, libido, and hormone balance.
Can low DHEA-S cause depression?
Some studies link low DHEA-S with depressive symptoms, particularly in older adults.
When does DHEA-S start to decline?
Typically begins to decrease in the 30s and continues to decline with age.
DHEA-S testing is a valuable tool for evaluating energy levels, libido, adrenal gland function, and sex hormone production. Low levels may explain symptoms like unexplained fatigue, reduced sex drive, or fertility issues.
If you’re experiencing vague but persistent symptoms, ask your doctor about the DHEA-S test as part of a complete hormonal evaluation.