Meet celebrity trichologist

William Gaunitz, FWTS

William Gaunitz, FWTS is a certified trichologist and the founder of Advanced Trichology. He has spent more than two decades studying the causes of hair loss and building structured, evidence-led protocols used by clients worldwide.

The Trichologist exists to close the gap between what the research shows and what people are sold. Every episode and article starts from the same clinical question: what is actually causing this hair loss, and what does the evidence say will change it?

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Portrait of certified trichologist William Gaunitz, FWTS, founder of Advanced Trichology

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Professional highlights

Two decades of training, certification and clinical research across four continents — the milestones behind the Gaunitz Trichology Method.

  1. 2020New York, NY

    World Trichology Society Professor

  2. 2018New York, NY

    Founded Trichology.com

  3. 2013New York, NY

    Certified Trichologist with the World Trichology Society under Dr. David Kingsley, PhD

  4. 2007–2008Phoenix, Arizona

    Featured in Phoenix Magazine's Top Docs issue

  5. 2005Phoenix, Arizona

    Provided the clinical testing and clinical data behind the Erchonia Medical THL-1 handheld laser

  6. 2003London, England

    International Association of Trichology

  7. 2003Bordeaux, France

    BME Electronics — microscopic scalp analysis

  8. 2003Perth, Australia

    Multi-therapy low level laser therapy training

About William

His path to becoming a trichologist started with his own hair loss.

01Background

Overcoming hair loss himself

While attending military school William found a well-regarded hair growth product and had early success with it. At 21, stress triggered a resurgence of shedding that no conventional remedy would hold back.

He consulted a dermatologist and combined a new hair loss drug with his original routine. By 22 the loss had worsened and his confidence with it. In 2002, after exhausting the usual options, he invested in low level laser therapy — and that treatment finally turned the case around.

02Experience

Turning a personal struggle into clinical expertise

Motivated by his own case, William studied trichology and microscopic scalp analysis across Europe and Australia — London, Bordeaux and Perth — then trained in multi-therapy laser protocols.

In January 2003 he opened his own hair loss clinic in North Phoenix, Arizona, combining that international training with the holistic approach his own recovery had taught him.

03Method

The Gaunitz Trichology Method

The method is diagnosis-first: identify the root cause of the hair loss, match it to a personalised protocol built on Advanced Trichology products and clinical support, then measure regrowth — often visible within about three months.

William has since helped thousands of people, including celebrities and professional athletes, regrow hair and restore their confidence. The method is open to anyone facing hair loss, not just clinic clients.

Start with the hair loss quizVisit Advanced Trichology

Credentials and clinical background

  • Fellow of the World Trichology Society

    The FWTS designation recognises advanced study and clinical competence in the science of hair and scalp disorders.

  • Founder, Advanced Trichology

    A clinical practice and research operation focused on diagnosis-led hair loss treatment rather than generic product routines.

  • Two decades of case work

    Protocols shaped by thousands of client cases across androgenic alopecia, telogen effluvium, nutritional deficiency and scalp inflammation.

  • Media and education

    Featured across national media and the host of The Trichologist Podcast, translating research into practical guidance.

What clients say

“Wow, that is incredible!”
Kathy Ireland — International supermodel and business mogul, on results from the Gaunitz Trichology Method
  • “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 BrownDoctor 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, and I was too young to lose mine. William spent the time to figure out what was going on. I am thrilled with my results.”
    Aubrie McCallClient 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 JohnsonClient since 2011

From the podcast

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Due to the wide array of hair colours, textures, ethnicities, medical conditions, genetics and age groups, results of hair loss treatment vary from individual to individual. The information on this site is educational and is designed to support, not replace, the relationship between you and your healthcare provider.