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DHEA-S: Hormone, Normal Levels & Significance

DHEA-S (dehydroepiandrosterone sulfate) is a hormone produced by the adrenal cortex. It acts as a precursor for sex hormones and is measured via a blood test.

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Things worth knowing about "DHEA-S"

DHEA-S (dehydroepiandrosterone sulfate) is a hormone produced by the adrenal cortex. It acts as a precursor for sex hormones and is measured via a blood test.

What is DHEA-S?

DHEA-S stands for dehydroepiandrosterone sulfate and is the sulfated, circulating storage form of the hormone DHEA. It is produced primarily by the adrenal cortex and is the most abundant steroid hormone in the human body. DHEA-S serves as a prohormone – a precursor molecule that is converted in peripheral tissues into active sex hormones such as testosterone and estrogen.

Biological Function

Although DHEA-S itself has limited direct biological activity, it plays a central role as a hormonal reservoir. Key functions include:

Precursor for the synthesis of androgens and estrogens
Involvement in the development of secondary sexual characteristics during adrenarche
Influence on muscle mass, bone density, and metabolism
Potential role in immune function and energy regulation

DHEA-S levels peak between the ages of 20 and 30 and then decline steadily with age – a process known as adrenopause.

Diagnosis: Measuring DHEA-S in the Blood

DHEA-S levels are measured through a standard blood test (serum assay). Due to its long half-life of approximately 10 hours, DHEA-S is a stable and reliable marker of adrenal cortex function. Unlike DHEA, DHEA-S does not exhibit significant circadian (daily) fluctuations, making it easier to interpret.

Reference Ranges

Normal DHEA-S values vary by age and sex:

Women (ages 20–29): approximately 65–380 µg/dL
Men (ages 20–29): approximately 280–640 µg/dL
Values decline significantly with advancing age

Reference ranges may differ between laboratories, and results should always be interpreted by a qualified healthcare professional.

Elevated DHEA-S Levels

High DHEA-S levels may indicate the following conditions:

Congenital adrenal hyperplasia (CAH): an inherited disorder of adrenal cortex function
Adrenal tumors (e.g., adrenocortical carcinoma)
Polycystic ovary syndrome (PCOS): a common hormonal disorder in women
Cushing syndrome (in certain forms)
Use of DHEA-containing dietary supplements

In women, elevated DHEA-S may cause symptoms such as acne, excessive body hair growth (hirsutism), irregular menstrual cycles, and voice changes.

Low DHEA-S Levels

Reduced DHEA-S levels may be associated with:

Adrenal insufficiency (e.g., Addison disease)
Hypopituitarism (underfunction of the pituitary gland)
Long-term corticosteroid therapy
Age-related decline (adrenopause)

Symptoms of low DHEA-S may include fatigue, reduced drive and motivation, decreased libido, and a general sense of malaise.

Treatment and Clinical Relevance

Treatment of abnormal DHEA-S levels depends on the underlying cause. In confirmed adrenal insufficiency, DHEA replacement therapy may be considered. In some countries, DHEA is approved as a pharmaceutical agent (e.g., for the treatment of female sexual dysfunction), while in others it is available as an over-the-counter dietary supplement.

Important: Self-administration of DHEA supplements without medical supervision is not recommended, as overuse may lead to undesirable hormonal imbalances and side effects.

References

Traish, A.M. et al. (2011): DHEA in Aging and Disease. In: Journal of Steroid Biochemistry and Molecular Biology, 126(3–5), pp. 3–12. DOI: 10.1016/j.jsbmb.2011.02.002
Labrie, F. (2010): DHEA, Important Source of Sex Steroids in Men and Even More in Women. In: Progress in Brain Research, 182, pp. 97–148.
Starka, L. et al. (2015): Dehydroepiandrosterone: A Neuroactive Steroid. In: Journal of Steroid Biochemistry and Molecular Biology, 145, pp. 254–260. DOI: 10.1016/j.jsbmb.2014.03.008

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