Feldman Hair InstituteExperts in hair loss
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Independent hair loss assessment

Persistent hair loss.Clear answers.Better treatment decisions.

Independent expert assessment when diagnosis, progression or treatment response remains uncertain.

Your pattern. Your timeline. Your treatment history. Your next step.

In-person assessment in Toronto. Remote case review worldwide.

Independent expert assessment and monitoring when diagnosis, progression or treatment response remains uncertain.

Your pattern. Your timeline. Your treatment history.
Your next step.

In-person assessment in Toronto. Remote case review worldwide.

Peter R. Feldman

Peter R. Feldman, PhD (Medicine)

Founder and Director, Feldman Hair Institute

Hair researcher, clinical trialist, Evidence-Based Hair Fellow and Certified Trichologist.

Peter R. Feldman, PhD (Medicine)

Internationally recognized hair researcher and clinical trialist. Evidence-Based Hair Fellow and Certified Trichologist.

Founder and Director, Feldman Hair Institute

For patients

Keep more hair.
Regrow what’s possible.

Understand what is happening, which treatment options deserve priority and what results are realistic.

Explore your assessment options

For practitioners

Expert consultation for complex and unresolved hair loss.

Independent case analysis, expert opinion and management recommendations.

For Practitioners

What FHI delivers

Establish what is happening

Integrate history, examination, scalp findings, investigations and treatment response.

Prioritize treatment options

Identify what deserves attention now and what can reasonably wait.

Measure what changes

Track progression and treatment response against a documented baseline.

Peter R. Feldman presenting at the World Congress for Hair Research
Peter R. Feldman, PhD presenting at the 13th World Congress for Hair Research, Dallas, April 2024, with chair Ken Washenik, MD, PhD, and co-chair Ratchathorn Panchaprateep, MD, PhD.Peter R. Feldman, PhD presenting at the 13th World Congress for Hair Research, Dallas, April 2024, with chair Ken Washenik, MD, PhD.

Independent expertise

Hair research applied to complex hair loss.

Peter R. Feldman’s research and clinical-trial work have helped shape current thinking on diagnostic uncertainty, treatment response and follicular regeneration. At FHI, he applies that evidence to complex and unresolved hair loss.

  • PhD (Medicine)
  • Evidence-Based Hair Fellow
  • Certified Trichologist
About Peter R. Feldman

Insights

When a hair loss diagnosis leaves questions unansweredExplore how persistent soreness, sudden shedding or an unusual patch can leave questions after a diagnosis, and how the history, visible pattern and close scalp examination can help identify findings that deserve further attention.Why hair treatment response can be difficult to interpretUnderstand why reduced shedding, short new hairs, scalp comfort and visible coverage can change at different times, and why each observation needs its own interpretation before judging the overall response to a hair loss treatment.How measurement can change the next treatment decisionLearn how consistent photographs, hair counts and close images of the relevant scalp area provide a dependable comparison over time, helping distinguish changes in coverage, hair number and thickness when reviewing the next treatment decision.

For patients

Explore your assessment options

For practitioners

Review professional consultation