Physician · Researcher · Clinical Innovator

The medicine your doctor doesn't talk about.

Evidence-graded deep dives into peptide therapy, longevity medicine, chronic infection, and immunology — from a practicing physician who treats patients from over 60 countries.

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“He put the sun back in my brain.”
Post-COVID patient · United Kingdom
Dr. Julian Douwes at Klinik St. Georg
Practicing Physician
12,000+
Patients treated
30,000+
Hyperthermia sessions
30+
Years of research
293
Published articles
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Patient Voices

Why I write, in three voices.

“After 8 years of Lyme, this was the first time someone actually understood.”
Lyme disease patient · United States
“The protocols here changed my entire trajectory. I went from surviving to living.”
Chronic fatigue patient · Canada
“Finally, a physician who explains the why, not just the what. This is what medicine should be.”
Longevity patient · Germany
“He put the sun back in my brain.”
Post-COVID patient · United Kingdom
Explore by Topic

Eight pillars of evidence-based medicine.

01

Peptides

BPC-157, TB-500, GHK-Cu, and the clinical reality behind the hype.

59 articles →
02

Longevity

NAD+, senolytics, rapamycin, IHHT, and the science of living longer.

47 articles →
03

Infectiology

Lyme, co-infections, Post-COVID, EBV, mold illness, and chronic infection.

55 articles →
04

Immunology

Autoimmunity, gut-immune axis, microbiome, and immune modulation.

18 articles →
05

Supplements

Vitamin D, magnesium, NAC, CoQ10 — what works and what doesn’t.

36 articles →
06

Diagnostics

Blood panels, immune testing, hormone profiling, and what labs miss.

25 articles →
07

Neuromodulation

TMS, VNS, neurofeedback, PEMF, and the brain-body connection.

24 articles →
08

Protocols

Morning routines, gut reset, Lyme support — step-by-step clinical guides.

23 articles →
Dr. Julian Douwes
The Story

Built on a legacy.
Driven by evidence.

My father founded Klinik St. Georg in 1991 as one of Europe's first hospitals to bridge conventional and integrative medicine. He treated patients from over 90 countries.

Today, as Chief Medical Officer, I continue that mission with a new generation of tools: peptide therapies, advanced diagnostics, and precision immunology. The medicine has evolved. The philosophy hasn't.

This site is where I share what I learn — the mechanisms, the clinical observations, the protocols that work. No hype. No miracle claims. Just the science, explained clearly.

Full Biography →
Latest

Latest from the practice.

All Articles →
Alpha-Ketoglutarate (AKG): A Physician's Guide to the Longevity Molecule Longevity

Alpha-Ketoglutarate (AKG): A Physician's Guide to the Longevity Molecule

Dr. Julian Douwes reviews the evidence on alpha-ketoglutarate (AKG) supplementation — from TCA cycle biochemistry to epigenetic aging and clinical dosing.

May 9, 2026 · 9 min read IV Glutathione Therapy: Clinical Uses, Dosing Protocols, and What to Expect Protocols

IV Glutathione Therapy: Clinical Uses, Dosing Protocols, and What to Expect

A physician's guide to IV glutathione therapy — indications, dosing protocols, clinical evidence, and how it compares to oral and liposomal forms.

May 9, 2026 · 7 min read Exosome Therapy for Regeneration and Longevity: A Physician's Evidence Review Longevity

Exosome Therapy for Regeneration and Longevity: A Physician's Evidence Review

Dr. Douwes reviews exosome therapy—what exosomes are, the clinical evidence for regeneration and anti-aging, dosing protocols, and how to evaluate providers safely.

May 8, 2026 · 9 min read
The Evidence Brief

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Every Thursday, I send one email covering peptides, longevity science, clinical protocols, or immunology. Written for physicians, researchers, and patients who want real information.

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Recent articles
Peptides
Semax: The Nootropic Peptide That Amplifies BDNF and Protects the Brain
8 min read
Longevity
Alpha-Ketoglutarate (AKG): A Physician's Guide to the Longevity Molecule
9 min read
Protocols
IV Glutathione Therapy: Clinical Uses, Dosing Protocols, and What to Expect
7 min read
Longevity
Exosome Therapy for Regeneration and Longevity: A Physician's Evidence Review
9 min read