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Not a Predetermined Fate, but a Matter of Progression SpeedGenetics · DHT

Have you thought that because your father had hair loss, there is nothing you can do about it? Genetic hair loss can easily feel like an unavoidable outcome. However, in reality, rather than genetics itself, it is the hair follicle’s sensitivity to DHT (Dihydrotestosterone) that determines the speed of hair loss progression. In other words, even under the same genetic conditions, the outcome can vary greatly depending on when and how it is managed.

If These Apply to You, Genetic · DHT Hair Loss Should Be Suspected.

  • There is a family history of hair loss. (Including parents, maternal grandparents, siblings)

  • The hairline on the forehead has started receding in an M-shape.

  • Without covering the forehead with bangs, the forehead appears wider.

  • Hair on the crown is gradually becoming thinner and losing density.

  • Hair loss started relatively early, in the 20s–30s.

  • Overall hair has become thinner and weaker.

  • Hair loss progression is concentrated in specific areas (forehead, crown).

Are Genetic Hair Loss and Male Pattern Hair Loss the Same?

Generally, male pattern hair loss = genetic hair loss is commonly recognized, but medically, it refers to hair loss that reacts to DHT. 

In other words, genetics should be understood as “susceptibility,” while DHT is the “actual acting factor.”

The Medical Mechanism of
How DHT Causes Hair Loss

DHT and Hair Follicle Miniaturization

DHT is a hormone converted from testosterone by the enzyme 5α-reductase, and it gradually miniaturizes hair follicles that are sensitive to DHT. As this process repeats, the hair becomes thinner and eventually loses its ability to grow.
  • Shortening Of The Hair Growth Cycle
  • Gradual Reduction In Hair Follicle Size
  • Thick Hair → Vellus Hair Transformation

Genes And Hair Follicle DHT Sensitivity

Hair loss is influenced more by the sensitivity of androgen receptors in the hair follicles than by the amount of DHT itself. Even with the same DHT level, higher receptor sensitivity leads to faster follicle miniaturization.
  • Androgen receptor genes are located on the X chromosome
  • Differences in hair loss progression speed between individuals

Why Hair Loss Occurs In Specific Areas

Although the entire scalp is exposed to DHT, differences in receptor density by area create different hair loss patterns. In particular, the hairline and crown have high sensitivity, while the occipital area is relatively resistant.
  • Hairline · Crown → High receptor density
  • Occipital area → DHT resistance
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When Should Treatment for
Genetic · DHT Hair Loss Begin?

For genetic hair loss, the key timing for treatment is not after significant hair loss occurs,
but when the hair first starts becoming thinner.

When your hair becomes thinner than before

When you are concerned due to family history

When density decreases around the crown or M-shaped hairline

When hairstyling becomes difficult


Is Hair Loss Medication Alone Enough
for Genetic · DHT Hair Loss?

DHT-suppressing medications such as finasteride (Propecia) and dutasteride (Avodart) may help
slow the progression of hair loss. However, medication alone is not sufficient in every case.

Differences in medication response

Possibility of side effects

Burden of long-term medication use

Since treatment methods for genetic hair loss vary depending on the stage of progression,
it is important to first accurately diagnose the current stage of hair follicle damage.

HairON Clinic’s Treatment Program
for Hair Loss Caused by Genetics · DHT

1

Precision Diagnosis

  • Treatment DetailsScalp · Blood Flow · Autonomic Nervous System Balance Examination
  • Main EffectsVisualization of Hair Loss Causes
2

Medication Prescription

  • Treatment DetailsDHT Suppression · Maintenance of Hair Growth
  • Main EffectsSuppression of Hair Loss Progression · Density Maintenance
3

Hair Follicle Strengthening Injection

  • Treatment DetailsInflammation Relief + Nutrient Supply
  • Main EffectsScalp Soothing · Hair Strengthening
4

Scalp · Nervous System Balance Care

  • Treatment DetailsLED Soothing, Scalp Botox
  • Main EffectsTension Relief · Circulation Improvement
4

Lifestyle Customized Prescription

  • Treatment DetailsSleep · Stress Management Coaching
  • Main EffectsRecurrence Prevention · Continuous Recovery

Hair Loss Diagnosis and Treatment Methods
Differ Depending on the Cause.

Hair loss may appear similar in symptoms, but depending on the cause, the progression pattern and treatment direction can differ. Therefore, if noticeable changes occur, it is important to receive an accurate diagnosis without delay.

HairON is a hair loss specialty clinic located in Gangnam that carefully evaluates your current condition and designs a treatment direction tailored to the cause.
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Frequently Asked Questions

Hair Loss Research Center

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Genetics · DHT , Get a Professional Diagnosis

Lack of sleep, excessive tension, chronic fatigue. The warning signs sent by the body also appear on the scalp. Have you experienced major stress within the past 3 months?

If so, it may not be simple hair loss, but “neurological hair loss.”
Diagnose My Hair Loss Cause Now

HairON Clinic
Hours of Operation

  • Weekdays (Mon–Fri)10:00 AM – 8:00 PM
  • Saturday10:00 AM – 3:00 PM
  • Lunch Break2:00 PM – 3:00 PM
  • Phone Consultation+82-02-6949-2030
  • 3F, Hongwoo Building, 373 Gangnam-daero, Seocho-gu, Seoul, South Korea

Insights » Hair Loss Treatment by Dr. Hyunggon Son

A First Visit Story: Female Hair Loss in Her 40s at HairON Clinic

Hair loss in women in their 40s may not be simply a sign of aging. If you’re concerned about thinning hair or reduced volume, explore the causes and management options through a first visit to Hairon Clinic.