The Evidence-Based
Authority for Hair,
Scalp & Trichology
Medical journals, clinical insights, and a verified directory of trichologists — bringing clarity and scientific standards to healthcare.
What is Trichology?
Discover what trichology is, how it helps with hair and scalp health, and why it’s essential for preventing hair loss and promoting growth.
Trichology vs. Dermatology
Learn how trichology and dermatology differ, their roles in hair and scalp health, and which specialist is right for your needs.
History of Trichology
Explore the origins of trichology, its evolution over time, and how it has shaped modern hair and scalp care.
Trichology explained
Trichology is the paramedical science that studies the structure, function, and diseases of the human hair and scalp.It was born in London in 1902 and as well as treating hair and scalp related disorders, searches for the cause(s) behind the hair loss. A trichologist will focus on the process of naturally regrowing hair by analyzing the scalp and gaining a thorough client history.
Read More
7 Nutritional Deficiencies That Cause Hair Loss (And How To Fix Them)
How Does Menstrual Cycle Impact Hair Health?
How Nettle Root Extract Boosts Hair Growth in Hair Regrowth Serum
Is It Dandruff or Dry Scalp? Understanding Symptoms, Treatment, and More
What Is Alopecia Disease? Symptoms, Causes, And Treatments Explained
The Best Alopecia Hair Shampoo For Effective Hair Growth And Regrowth
The Ultimate Guide To Creatine: Benefits, Safety, And Supplements
How DHT Blockers Can Combat Hair Loss and Promote Hair Growth
Say Goodbye to Hair Breakage: Expert Tips and Tricks
The Rise of Scalp-Focused Haircare: Embracing the Skinification Trend
Ferritin Deficiency, Iron, and Hair Loss: Understanding the Connection
Experts reveal the 15 best shampoos for thinning hair in 2025
Unveiling The Latest Hair Product Trends: A Spotlight On Competing Brands
Beyond Minoxidil: Holistic Hair Growth Guide
The Truth About Ginger: Does It Really Damage Hair?
Discover the Magic of Rosemary Water for Hair Growth
Meet our leadership team
William Gaunitz FWTS
Certified trichologistHe has trained in London, France and Australia, as well as being the founder of the
Evolution Hair loss Institute in Phoenix, Arizona.
He has been a pioneer of Laser Light Therapy for hair loss which he uses in conjunction
with other treatments, and is the mastermind behind the most comprehensive
multi-therapeutic complete system for hair growth available today.
Trichology designed to deliver results
The modern world has created the perfect environment for hair loss. With the increase of
pharmaceutical usage, hormone replacement therapy, stress, poor diet, mineral deficiencies, and
sedentary lifestyles, we are seeing more and more people dealing with this condition.
Stopping hair loss is not as easy and as simply applying a different product to your hair for a
short period of time. It requires understanding and blocking the reasons that caused hair loss
in the first place.
Most products or treatments on the market focus solely on one specific type of hair loss. But…
our unprecedented research and experience has taught us that multiple reasons for hair loss can
manifest themselves at the same time.
Thus to reverse hair loss and be successful at natural hair growth, you must use a complete
multi-therapeutic trichological system that blocks all reasons for loss.
Developed over a 16 year period, our methodology has produced the most impressive results of any
non-surgical hair loss treatment program.
Within the Evolution Hair Loss Institute after working with thousands of clients, William
Gaunitz WTS was able to refine a totally unique hair growth philosophy to create a system that
is simple and easy to understand.
This process is known as the Gaunitz Trichology Method (GTM).
GTM approved products are used in clinics all around the world to successfully treat multiple
types of Alopecias. When used correctly, this multi-therapeutic system allows both men and women
to typically regrow hair that has been lost in the previous 3 to 5 years in as little as 60
days.
History of trichology
A journey through scientific discovery
Trichology was founded
Certified Trichologist with World Trichology Society under Dr. David Kingsley PhD
International Association of Trichologists was founded
International Association of Trichology was founded by Trichologist David Salinger as California Non-Profit Corporation
National Trichology Training Institute was founded
National Trichology Training Institute was founded by Trichologist Conny Judge in Atlanta, Georgia USA
World Trichology Society was founded
World Trichology Society was founded by Dr. David Kingsley in New York, New York USA. His focus was more medical than previous societies at that time.
Learn more about hair loss
Hair loss is a complicated issue that affects both men and women. Stay up to speed with all the latest news, by reading our blog.
View AllGaunitz trichology method in action
If I hadn’t found William Gaunitz, I probably would be bald right now… I have more hair now than before the hair loss started! William figured out my hair loss after my first assessment. I had previously seen two dermatologists with no solution.
DR. STEVEN BROWN
Doctor of Chiropractic
William just really saved my hair. I am simply a happy person because of it! When my hair started falling out, I was devastated. For women our hair is our crowning glory. I was too young to lose my hair. When I found William, he spent the time to figure out what was going on… I am thrilled with my results and this really does work!
AUBRIE MCCALL
Client Since 2012
My hair was not growing back on its own after spending time in the hospital and being very sick. I had given it time to recover, but I knew it was time to do something more. I am very pleased with the results and with the staff. My hair hasn’t been this thick and full in years!
SUSAN JOHNSON
Client since 2011