The Catalyst Clinic

Doctor-led peptide clinic in London. Peptide therapy clinic consultations built on mandatory bloodwork, with monthly doctor reviews. Book a consultation. 96 Kensington High St, London W8 4SG, United Kingdom The Catalyst Clinic transcends conventional aesthetics. We offer a transformative, physician-led journey built on diagnostics and personalised data — not templates — integrating regenerative medicine, peptide therapy in London , hormonal optimisation, metabolic health, nutritional guidance, structured fitness planning, and supportive coaching. The Catalyst Clinic is a physician-led longevity and regenerative medicine clinic operating in London and New York. Led by Dr. Ethan Hausman-Marquis — PhD in Cell and Genomic Biology, doctor-scientist, US and European board-certified, and author of two published works in peptide science. We go beyond aesthetics, offering a comprehensive approach to longevity that nourishes your wellbeing from head to toe, inside and out. Every service at The Catalyst Clinic is built on the same diagnostics-first, physician-led framework — whether you are here for aesthetic medicine, regenerative health, or longevity science. Ready to experience a genuinely diagnostics-first, physician-led approach to longevity and regenerative wellness? Begin with a discovery consultation — in person at our London, Monaco and New York clinics