Dihydrotestosterone (DHT)

Hormones

Male Hormones

Dihydrotestosterone (DHT) is a potent androgen converted from testosterone by the enzyme 5-alpha reductase. Though present in smaller amounts than testosterone, it binds androgen receptors more strongly and drives many male characteristics. A preventive practice tracks it to understand androgen activity in tissues such as skin, scalp, and prostate.

What It Measures

Potent androgen converted from testosterone by 5-alpha reductase; drives male characteristics

Optimal vs. Lab Range

Longevity Optimal

35–60 ng/dL

Target range for optimal health and longevity based on research.

Standard Lab

30–85 ng/dL

Population-based reference range from standard labs.

Why It Matters

DHT's potency means it strongly shapes androgen-driven traits, for better and worse. High levels are associated with male-pattern hair loss, prostate enlargement (BPH), and acne, while low levels can contribute to reduced libido, diminished facial and body hair, and gynecomastia. Because DHT is derived from testosterone, its level reflects both testosterone availability and 5-alpha reductase activity, so it is interpreted alongside total and free testosterone. Understanding DHT helps clinicians balance the benefits of healthy androgen signaling against the tissue-specific effects that matter for prostate health, hair, and quality of life over time.

When Low

Low libido, reduced facial/body hair, gynecomastia

When High

Male pattern baldness, prostate enlargement (BPH), acne

How to Optimize

When DHT is excessive and clinically significant, physician-directed 5-alpha reductase inhibitors such as finasteride or dutasteride may be considered, and some patients explore saw palmetto as a gentler option. Because DHT stems from testosterone, any changes are weighed against overall androgen status and goals, and monitored, including prostate markers. Balance rather than suppression is usually the aim. 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

Moderate evidence

Key Interventions

Finasteride/dutasteride (clinical

if excessive)

saw palmetto

Linked Compounds & Supplements

Saw Palmetto

Pygeum

Stinging nettle

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 Dihydrotestosterone (DHT).
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.