What Are Testosterone and DHT? And Why Do They Make Hair Thinner?
- Kevin Micheal Daus, M.D.
- Nov 27
- 2 min read

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.