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Hair Dihydrotestosterone (DHT) Mass Concentration

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of dihydrotestosterone (DHT), a hormone derived from testosterone, in hair samples. DHT plays a key role in male pattern baldness and androgen-related conditions.

Quick summary

["DHT levels in hair can help assess hormonal influences on hair loss or other androgen-sensitive conditions."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
80557-2
Short code
EDDP Hair-mCnt
Synonyms
EDDP Hair-mCnt
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Is Dihydrotestosterone (DHT)?

DHT is a potent form of testosterone that binds tightly to hair follicles, contributing to hair thinning and loss, particularly in men. It’s also involved in other androgen-sensitive processes in the body.

Why Might You Need This Test?

Your healthcare provider may order this test if you’re experiencing hair loss, particularly if it follows a pattern typical of male pattern baldness, or if you have symptoms linked to hormonal imbalances.

How Is the Test Performed?

A small sample of hair is collected, typically from the scalp or other areas. The hair is processed to extract and measure DHT levels using specialized laboratory techniques.

What Does the Test Result Mean?

Results are compared to reference ranges for healthy individuals, though exact values can vary by lab. High levels may suggest increased sensitivity to DHT-related hair loss or other androgen-related conditions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance of DHT in hair testing includes evaluating potential causes of hair thinning, guiding treatment for androgenetic alopecia, and assessing hormonal influences on hair health. It may also be used in research or specialized clinical scenarios.

Short name

DHT in Hair

Frequently asked questions

What does a high DHT level in hair mean?
A high DHT level may indicate increased activity of this hormone in your hair follicles, which could contribute to hair loss patterns like male pattern baldness. However, it’s not definitive on its own and should be interpreted alongside other factors.
How often should I get this test?
The frequency depends on your symptoms and medical advice. If you’re monitoring hair loss or a suspected hormonal condition, your provider may recommend periodic testing or adjustments to treatment plans.
Can diet or supplements affect DHT levels in hair?
Dietary factors or supplements may indirectly influence hormone balance, but DHT levels in hair are primarily reflective of existing hormone activity. Your provider may discuss lifestyle or treatment options tailored to your needs.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy