Biomarker-Guided Regenerative and Molecular Therapeutics.
At The Catalyst Clinic, peptides are integrated into individualiZed treatment plans—never as trends, never as over-the-counter shortcuts, and never without rigorous clinical oversight.
Our approach is grounded in scientific research, precision diagnostics, and longitudinal patient monitoring. Peptides are tools—powerful ones—but tools only achieve meaningful outcomes when used inside a clinically governed system. No other doctor in Europe has the almost 20 years experience to oversee as safe and balanced peptide protocol. That is what distinguishes us from the typical “biohacking” or aesthetic clinics.
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
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.
Precision Meets Personalization
The Catalyst Clinic and Bioniq unite to redefine personalized wellness.
Through advanced biomarker analysis and precision supplementation, this collaboration integrates The Catalyst Clinic’s clinical expertise with Bioniq’s data-driven nutrient delivery system — creating a seamless path toward optimized longevity, balance, and cellular health. Based off yor blood work analysis peptide protocol, current medication, we will customize your supplementation program.
Science-backed |Clinician-guided | Uniquely yours
Benefits of Peptide Therapy at the catalyst clinic
biohacking anti-aging results with Targeted Treatments
Peptide therapy uses targeted US and European prescribed peptides to address specific health and wellness concerns. These molecules orchestrate biological processes from metabolism to tissue regeneration.
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, and soon The Peptide Encyclopedia. He also hosts a weekly 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.
Dr Ethan Hausman-Marquis has over 15 years experience with peptides. He is a lecturer and innovator in molecular longevity. With a PhD in Genomic and Cell Biology from the Karolinska Institute in Stockholm, he combines both medical and fundamental molecular biology in his treatment plans.
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.
Every protocol is designed and supervised by GMC, European and US medical doctors trained in advanced longevity, regenerative physiology, and personalised biomarker-based care.
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
- Pharma-grade peptides from European-based EMA-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.
WHY CHOOSE OUR PEPTIDE CLINIC AT
THE CATALYST CLINIC IN LONDON?
Experienced Medical Oversight
Dr Ethan and Dr Brendan brings over 15 years of experience in peptide and regenerative medicine, combining clinical practice with published research. No other doctor in Europe has the almost 20 years experience in peptide therapy. 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
AURION™ is The Catalyst Clinic’s adaptive intelligence engine — analyzing biomarkers, genetics, medical history, lifestyle data, and goals to create a truly personalized peptide and longevity protocol. Each consultation feeds directly into AURION™, allowing it to refine dosing, stack design, and therapeutic sequencing for maximum cellular repair and long-term health optimisation. No other clinic offers this level of data-driven 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
All peptides provided through The Catalyst Clinic are prescription-only and sourced from FDA-registered, ISO-9001–certified, GMP-compliant compounding pharmacies in the United States, as well as an EMA-regulated compounding pharmacy in Europe, with distribution managed through licensed FDA- and EMA-regulated partners. No other clinic delivers this level of medical and data-driven customization.
Convenient Locations
The Catalyst Clinics are conveniently located in New York, London, and soon Zürich – each easily accessible by public transport or car. We also offer services remotely for patients globally – UAE, Australia, USA, Canada and South America.
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
The Catalyst Method 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
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
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
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.
Doctor-led Industry Experts
The Catalyst Clinic is led by GMC-registered and U.S. Board-certified physicians with almost 20 years of experience in peptide therapy and regenerative medicine. No other clinic in Europe. Over 500 satisfied patients.
Personalized Approach
AURION™ is The Catalyst Clinic’s adaptive intelligence engine — integrating biomarkers, genetics, medical history, and lifestyle data to create a truly personalised peptide and longevity protocol. Each consultation refines AURION’s dosing and therapeutic sequencing for optimal cellular repair and long-term health. No other clinic offers this level of data-driven customisation.
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.
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.
