Doctor-led
Lab-Integrated
Personalized

Precision Peptide Advisory Clinic in London For Optimal Healthspan and Cellular Function

Doctor‑supervised protocols, detailed diagnostics, and ongoing follow-up — Designed to support performance, recovery, and long-term wellness under medical supervision.

Start with a consultation
Peptides in two minutes

As seen In:

 Peptides in two minutes

Discover peptides in a two-minute explainer — an animated introduction to how these small protein molecules are being studied for their roles in cell repair, signaling, and regeneration.

The video highlights research exploring peptide communication and why these molecules are attracting interest in longevity science.Follow BPC-157, SEMAX, and GHK-Cu directing tissue repair, brain signaling, and skin regeneration in a clean, futuristic visual explainer. Perfect for science explainer fans, this fast-paced 2-minute video Illustrates how peptides may influence repair, signaling, and structure, based on scientific research.

A quick primer on mechanisms (tissue repair, mitochondrial support, inflammation control) and how we tailor dosing, delivery, and cycling to your biomarkers. You've likely heard about this, but maybe not gotten a clear explanation. With a PhD in Cell and Molecular Biology, Dr. Ethan Hausman-Marquis created this short video to explain how peptides really work. Check it out!

Key Points

Duration

30 mins

Discomfort

1/10

No. of Sessions

As needed

Recovery Time

1 day

Price

from £500 per month
Consultation from £150
start with a consultation

DISclaimer

Peptides and related compounds referenced on this site are for research and educational purposes only. They are not licensed medicines under the Human Medicines Regulations 2012 and are not approved by the MHRA for human use. Information provided is not medical advice and should not be interpreted as treatment guidance. Please review our Compliance and Regulatory Statement for more detailed information.

WHY CHOOSE OUR PEPTIDE CLINIC AT
THE CATALYST CLINIC IN LONDON?

Experienced Medical Oversight

Dr Ethan brings over 15 years of experience in peptide and regenerative medicine, combining clinical practice with published research. He is also the author of two books on peptides: Exploring the World of Peptides: From Basics to Breakthroughs and Peptide-Based Cancer Therapies: A New Frontier in Precision Medicine. He also hosts the podcast The Science of Age-less Living.

Personalized Approach

Each consultation considers your medical history, biomarkers, and health goals to develop an evidence-informed plan. All these data are inputted into The Catalyst Clinic's proprietary AURION system – for the creation of your protocol. This protocol will take into account, relevant biomarkers, genetic markers, current medication, demography and goals to create a truly bespoke treatment plan. No other clinic in the world can offer this customization.

Commonsense Protocols

It is advisable to be cautious if a clinic does not perform blood work. For your safety, ensure that any clinic you choose conducts thorough blood tests prior to initiating peptide therapy.

All peptide treatments require blood work every 3–4 months after commencing. This mandatory service is included in the clinic's monthly fee.

Comprehensive Consultations

We conduct thorough consultations to assess your health and recommend the most suitable peptides for you.

Your treatment plan includes your medical history, bloodwork analysis, peptide protocol, and supplement recommendations designed to augment results—truly a bespoke service unmatched globally.

Pharmaceutical-Grade Peptides

Pharmaceutical-grade Peptides are US-prescribed only when clinically indicated and obtained from FDA-registered, ISO-9001 and cGMP-compliant compunding pharmacy in the US. No UK clinic can legally say UK "precsribed peptides" as they are not classified as prescrition medications. Our peptides are distributed in the US by a FDA-regulated laboratory.

Convenient Locations

The Catalyst Clinics are conveniently located in London, New York, and soon Zürich—each easily accessible by public transport or car.

WHY BLOOD DIAGNOSTICS ARE ESSENTIAL
BEFORE STARTING PEPTIDE THERAPY

Critical First Step

Comprehensive diagnostic testing is an essential first step before any peptide protocol. These investigations provide a baseline for safety and enable informed, personalised recommendations. Without diagnostic insight, peptide use may not be appropriate. At The Catalyst Clinic, all consultations include detailed biomarker testing and review.

Personalized Treatment

Comprehensive bloodwork provides a baseline, helping your provider decide if therapy is appropriate and how to tailor your protocol. Without it, peptides could disrupt balance and cause adverse effects, even if hormones already sit in the optimal range.

Maximize Benefits, Minimize Risks

Starting peptide therapy without bloodwork is a gamble. With thorough diagnostics, we can deliver safe, customised treatment that improves your chances of positive outcomes. Always choose a clinic that makes bloodwork foundational.

 Programs Tailored to Your Biology

Each program is developed in alignment with biomarker data and current scientific literature.
The following areas represent themes of peptide research and how they may relate to specific physiological systems:

Performance & Recovery

Research peptides such as BPC-157 and TB-500 are being studied for their roles in tissue repair and recovery from stress or injury.

  • • Advanced tissue repair protocols
  • • Sleep optimization therapy
  • • Recovery enhancement
  • • Athletic performance boost
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Cognitive & Mood

Molecules like SEMAX and Selank are under investigation for potential effects on focus, neuroplasticity, and mood regulation.

  • • Enhanced mental clarity
  • • Mood stabilization
  • • Neuroplasticity support
  • • Stress resilience
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Longevity & Metabolic

Clinical research explores peptides that may influence metabolic balance, skin integrity, and body composition through hormonal or mitochondrial pathways.

  • • Body composition optimization
  • • Skin health enhancement
  • • Metabolic flexibility
  • • Aesthetic improvements
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Your Journey to Optimal Health

Our comprehensive approach ensures safe, effective, and personalized peptide therapy with complete transparency and ongoing support.

Step 1

Blood & Diagnostic Testing

Comprehensive health assessment with included blood work

  • • Complete Blood Count (CBC)
  • • Comprehensive Metabolic Panel (CMP)
  • • Hormone Panel including sex hormones
  • • Additional vital biomarkers
  • • Physical examination
Step 2

Identifying the Right Peptide

Personalized peptide selection based on your unique profile

  • • Goal-specific peptide matching
  • • Health profile analysis
  • • Biomarker-guided selection
  • • Safety screening
Step 3

Treatment Plan & Dosage

Customized protocol with transparent dosing

  • • Personalized dosage calculation using our proprietary AURION™ AI software
  • • Administration method selection
  • • Comprehensive treatment plan
  • • Complete transparency — no 'secret sauce'
  • • A defining feature of the clinic is its personalized supplement program using our AURION™ AI software, tailored to your bloodwork, medications, and medical history—so every plan is truly unique. Currently the only software on the planet
Step 4

Induction & Reviews

Ongoing support with monthly assessments

  • • Detailed induction session
  • • Monthly progress reviews
  • • Protocol adjustments
  • • Quarterly blood work
Step 5

Cyclicity

Strategic cycling to maintain effectiveness

  • • Prevents desensitization
  • • Maintains natural homeostasis
  • • Avoids endocrine complications
  • • Optimizes long-term results
Step 6

Transparency

Complete openness in our patient relationship

  • • Full medical history discussion
  • • Medication interaction screening
  • • Open communication channels
  • • Educational approach
Medical Expertise

How Peptide Therapy Fits Into Longevity Medicine

A quick primer on mechanisms (tissue repair, mitochondrial support, inflammation control) and how we tailor dosing, delivery, and cycling to your biomarkers.

Dr. Ethan Hausman-Marquis

PhD in Cell and Genomic Biology

With extensive expertise in cellular mechanisms and peptide biochemistry, Dr. Ethan provides clear, science-based explanations of how peptides really work in the body.

Doctor-Led

Expert guidance

Personalized

Tailored protocols using our propriatary AURION™.

Start with a consultation
 
 
 
Doctor consultation

Expert Consultation

Comprehensive assessment and personalized treatment planning

Scientific illustration

Scientific Precision

Advanced peptide formulations based on cutting-edge research

Top Peptides

Below are examples of research peptides discussed during consultations.
These compounds are not licensed medicinal products in the UK and are available only under clinical supervision where appropriate.

Benefits of Peptide Therapy at the catalyst clinic

biohacking anti-aging results with Targeted Treatments

 

Transparency is our raison d'être. At The Catalyst Clinic, we offer advisory services on the research use of peptides; we're committed to open and honest dialogue – nothing more, nothing less. Second, the ability to tweak your treatment plan. Maybe you need more BPC-157 and less GHK-Cu. These therapies are truly customized to you! And YOU are the center of that treatment, not the peptide!

Dr. Ethan is at the forefront of longevity therapies – with 15 actual years in peptides at his Los Angeles and New York City clinics and now abroad. He is an active member and speaker for the International Peptide Society, the American Board of Regenerative Medicine, the American Academy of Anti-Aging Medicine, and the International Longevity Alliance.

As a pioneer in peptide chemistry he has written two books on peptide therapy, Peptide-Based Cancer Therapies: A New Frontier in Precision Medicine and Exploring the World of Peptides: From Basics to Breakthroughs. He also hosts a podcast, The Science of Age-less Living.

And it is all about the science! With a PhD in Cell and Genomic Biology and he knows and understands the metabolism, mechanisms and modes of action.

No clinical practitioner has the real lab bench background to really understand how these little marvels work.

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Benefits of Peptide Therapy at The Catalyst Clinic

Biohacking anti-ageing results with targeted treatments.

Transparency is our superpower. We offer advisory services on the research use of peptides, with honest, open communication—nothing more, nothing less.

Your plan is customised to you. Need more BPC-157 and less GHK-Cu? Adjustments are simple, with you at the centre—not the peptide.

What Are Peptides?

Peptides are short chains of amino acids acting as signalling molecules, influencing hormone production, cell regeneration, immune function, and cognitive health.

For more, listen to Dr. Ethan’s podcast The Science of Age-less Living.

What Is Peptide Therapy?

Peptide therapy uses targeted peptides to address specific health and wellness concerns. These molecules orchestrate biological processes from metabolism to tissue regeneration.

Our Approach

Your safety is our priority. We begin with detailed bloodwork and diagnostic analysis to ensure suitability. Dr. Ethan creates a fully personalised plan, adapted to your unique health profile and goals.

Innovative Technology

We are the first clinic to provide peptides in injectable pens—accurate, simple, and comfortable dosing without the hassle of traditional syringes.

  • Accurate dosing every time
  • Pharma-grade peptides from US-based FDA-regulated compounding pharmacy
  • Minimal preparation and equipment
  • Faster, simpler, and more comfortable injection process

Unlike pre-mixed syringes, our approach ensures clarity, flexibility, and precise customisation of your protocol.

Why Blood Diagnostics Matter

Bloodwork is essential before peptide therapy. It provides a baseline, uncovers imbalances, and ensures treatment is both safe and effective.

Skipping diagnostics is a gamble. With comprehensive testing, we personalise your plan for maximum benefit and minimum risk.

Member of:

Disclaimers

Disclaimer: GLP-1 Peptide Medications

Due to legal, regulatory, and dispensing criteria, The Catalyst Clinic does not provide any GLP-1 peptide medication as part of any protocols or treatment options.

If you are interested in or require information about these medications, we strongly advise you to consult your General Practitioner (GP) or a relevant medical specialist. They are best equipped to offer guidance, assess suitability, and prescribe these medications if appropriate for your health needs.

Ready to Start Your Journey?

Schedule your consultation and discover how peptide therapy can optimize your health.

Book Your Consultation
 

Purchase dr ethan’s book on PEPTIDEs

Peptides, short chains of amino acids linked by peptide bonds, are fundamental to countless biological processes. They serve as vital mediators in cellular communication, immunity, growth, and development, while also bridging the gap between individual amino acids and complex proteins. dr ethan’s book offers a clear overview of peptides—their structure, functions, and unique significance—while highlighting their transformative applications in medicine, fitness, and skincare. From innovative therapies to advances in healthy aging, peptides represent one of the most promising frontiers in human health and well-being.

Click here to read