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What Are Testosterone and DHT? And Why Do They Make Hair Thinner?

Kevin Micheal Daus, M.D.
Nov 27, 2025
2 min read
Diagram depicting hair miniaturization stages: Terminal Hair, Miniaturizing Hair, and Miniaturized Hair, with arrows and DHT labeled.

Have you ever wondered why some people’s hair gets thinner as they get older? A big reason is a hormone called DHT. Let’s break it down in a way that’s easy to understand.


⭐ What Is DHT?

Your body makes a hormone called testosterone.Some of that testosterone turns into DHT, which is a stronger version of the hormone.


Everyone has DHT — boys, girls, men, and women. But some people’s hair is more sensitive to it.


⭐ How DHT Makes Hair Thinner

Inside your scalp are tiny “hair factories” called follicles.When DHT gets inside these follicles, it causes a few problems:


1. Hair doesn’t grow as long

DHT makes the hair stop growing sooner, so each strand comes out shorter.


2. Hair gets thinner

DHT makes the follicle shrink.Smaller follicle = thinner hair.


3. Hair gets weaker

DHT can block some of the blood and nutrients the follicle needs to stay strong.


4. The scalp gets irritated

DHT can cause a little inflammation around the hair, which makes it harder for the hair to grow.


⭐ What This Looks Like

People with DHT-sensitive hair may notice:


  • Thinner ponytails

  • A wider part in the middle

  • A receding hairline

  • Hair looking less full than before


This happens slowly over time.


⭐ Can You Fix It? YES!

At Juanderful Aesthetics, we help hair get stronger again using:


  • PRP to wake up sleepy follicles

  • Microneedling to help new hair grow

  • LED therapy to calm inflammation

  • Peptides and serums to feed the follicles

  • The Juanderful 4-Step Hair System to make the scalp healthy again


When we treat the scalp and the hair follicle together, we can help hair grow better and stay stronger.


⭐ The Good News

DHT does not kill your hair.It only makes the follicle smaller — and we can help make it stronger again.

If you’re worried about thinning, we’re here to help you understand your scalp and build a plan that works for you.


Ready to strengthen your hair from the inside out?


Book your Hair + Scalp Analysis with Jacqueline Boatwright-Daus, Ed.S., MBA, BS, IAT — Certified Trichologistat At Juanderful Aesthetics and get a personalized, science-based treatment plan that targets DHT, inflammation, and follicle miniaturization at the root.


📞 Call: 678-369-0346

📍 Juanderful Aesthetics

📍3006 Clairmont Road

📍Suite 112

📍Brookhaven, GA 30329


Stay youthful. Stay Juanderful!




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