DHEA-S (Dehydroepiandrosterone Sulfate)

Hormones

Adrenal Hormones

DHEA-S is the sulfated, stable form of DHEA, an adrenal precursor hormone that the body converts into testosterone and estrogen. Levels peak in early adulthood and then decline steadily, roughly two percent per year after age 25. Longevity practices track it as a barometer of adrenal reserve and biological aging.

What It Measures

Adrenal precursor hormone; converts to testosterone and estrogen; declines ~2% per year after age 25

Optimal vs. Lab Range

Longevity Optimal

Age-adjusted; aim for levels of someone 10–15 years younger

Target range for optimal health and longevity based on research.

Standard Lab

138–475 µg/dL (M 20–29)

Population-based reference range from standard labs.

Why It Matters

DHEA-S sits upstream of the sex hormones, so its gradual decline mirrors many age-related shifts in energy, body composition, and resilience. Low levels are associated with aging, chronic stress, adrenal insufficiency, fatigue, and reduced immune function, while markedly high values may signal an adrenal tumor, PCOS, or congenital adrenal hyperplasia. Because the age-related fall is expected, clinicians often interpret DHEA-S against age-adjusted targets, aiming for levels typical of someone a decade or so younger. Its ratio to cortisol also offers a window into how the adrenal system is balancing stress and repair.

When Low

Adrenal insufficiency, aging, chronic stress, autoimmune, fatigue, immune suppression

When High

Adrenal tumor, PCOS, congenital adrenal hyperplasia

How to Optimize

When restoration is appropriate, physician-directed DHEA supplementation is typically titrated within a modest range (for example, five to fifty milligrams) and monitored, since it converts to downstream sex hormones. Foundational support includes stress management and consistent sleep, which help protect adrenal output naturally. Elevated DHEA-S warrants a workup rather than treatment. Hormone testing and treatment must be individualized with your physician; this content is educational and not a substitute for medical advice.

Key Interventions & Linked Compounds

Strong evidence

Key Interventions

DHEA supplementation (5–50mg

titrated)

stress management

sleep

Linked Compounds & Supplements

DHEA

Pregnenolone

Ashwagandha

Curated from clinical literature. Individual results vary; consult a qualified clinician before changing a protocol.

Ordering Notes

Specimen

Serum; saliva for diurnal cortisol panels

Patient prep

No fasting required. Maintain usual diet and medications unless advised.

Recommended cadence

Semi-annual

Reporting unit

Confirm with the performing lab — units vary by region.

Pre-analytic notes

Standardize draw time of day, hydration, and recent exercise. Note any acute illness, supplements, or hormonal therapies on the requisition.

Recommended Follow-Up Actions

1
Confirm the result is reliable
Repeat abnormal values before acting — preferably from the same lab, same time of day, and under consistent prep. Rule out acute illness, recent intense exercise, or medication effects that can shift DHEA-S (Dehydroepiandrosterone Sulfate).
2
Compare against optimal, not just lab range
Use the optimal window above as the target. Lab "normal" is built from the general population and often misses early dysfunction.
3
Pair with related markers
Order a complementary panel covering metabolic, inflammatory, and hormonal context to interpret this marker properly.
4
Discuss interventions with a clinician
Use the interpretation guidance above to frame the conversation. Bring trends, not just one datapoint, to your visit.
5
Re-test on a defined cadence
If a change is implemented, re-measure in 8–12 weeks for fast-moving markers, or 3–6 months for slower ones, to confirm response before escalating.