Comprehensive bloodwork
A full diagnostic panel is taken before any consultation. Without it, no protocol is designed.
RecommendedVerified
The Catalyst Clinic
Reviewed by Gabriel BrocklesbyFounder & EditorFact-checked
Doctor-led peptide advisory consultations in central London. Built on comprehensive bloodwork, GMP-certified pharmacy sourcing, and personalised protocols led by Dr Ethan Hausman-Marquis, who reports a PhD from the Karolinska Institute.
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Led by Dr Ethan Hausman-Marquis
- Reports a PhD from the Karolinska Institute
- Cites board certification in the US and Europe
- Notes ~20 years of peptide research experience
- Listed as author of two books on peptide therapy
Dr Ethan Hausman-Marquis leads The Catalyst Clinic's consultative practice. According to the clinic, he holds a PhD in Cell and Genomic Biology from the Karolinska Institute in Stockholm and is board-certified in regenerative and longevity medicine in the US and Europe. The clinic cites a near-20-year research career in peptide science and lists him as author of Peptide-Based Cancer Therapies and Exploring the World of Peptides.
The consultation pathway
Every protocol is built around the patient's own data. Nothing is suggested without first establishing a clear clinical baseline.
Doctor-led consultation
Dr Hausman-Marquis personally reviews your bloodwork, medical history, and goals during the in-person consultation.
Individualised protocol design
Protocols are built around your specific biomarkers using compounds sourced exclusively from GMP-certified, EMA-regulated pharmacies.
Ongoing supervision
Follow-up consultations and protocol adjustments are part of the programme, not optional extras.
Areas of focus
Peptide Therapy
Catalyst designs peptide protocols around specific clinical goals: recovery, regenerative support, cellular repair, and metabolic optimisation. Every protocol is informed by patient bloodwork and uses compounds sourced exclusively from GMP-certified, EMA-regulated pharmacies.
Regenerative Medicine
Catalyst's regenerative work focuses on tissue repair, recovery from injury, and supporting the body's own restorative processes. Protocols are personalised based on diagnostics and reviewed regularly as the patient's data evolves.
Longevity
Healthy-ageing protocols target the biological systems linked to long-term function: metabolic health, cellular repair, and inflammation. Every plan is supervised by Dr Hausman-Marquis with periodic biomarker review.
Pricing
Catalyst programmes start at £600 per month. This is a comprehensive programme cost, not a per-consultation fee — it covers initial bloodwork, doctor-led consultation, individualised protocol design, GMP-certified compound sourcing, and ongoing follow-up supervision. Specific pricing for individual protocols is discussed during the initial consultation.
Your visit
The Catalyst Clinic occupies a quiet space at 96 Kensington High Street, designed with the same care as its clinical protocols. Consultations are in-person by default; the environment matters because the relationship between physician and patient takes time, and Catalyst structures its practice around that principle rather than against it.
Location
96 Kensington High St, London W8 4SG, London, England, W8 4SG, United Kingdom
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