The Catalyst Clinic

I can’t recommend The Catalyst Clinic highly enough. From the very first consultation, it was clear that this is a clinic operating at an entirely different level. Dr Ethan has an exceptional bedside manner — calm, attentive, and genuinely thoughtful. He takes the time to listen properly, asks the right questions, and explains complex medical concepts in a way that feels reassuring rather than overwhelming. You never feel rushed, dismissed, or spoken down to. There’s a real sense that he is tailoring care to you as an individual, not following a generic template. What stood out most was the balance between deep scientific knowledge and humanity. Dr Ethan is clearly extremely knowledgeable, but he delivers that expertise with warmth, patience, and respect. It builds immediate trust. The clinic itself feels professional, discreet, and well run, with a strong emphasis on safety, evidence-based care, and long-term health rather than quick fixes. If you’re looking for a clinician who combines cutting-edge medicine with genuine care and excellent communication, The Catalyst Clinic is outstanding.

I’ve been working with Ethan Haussmann for several months, and I can honestly say he is one of the most attentive, knowledgeable, and genuinely caring practitioners I’ve ever met. From the very first consultation, Ethan took the time to fully understand my goals, my lifestyle, and the underlying issues I wanted to address. He doesn’t offer a one-size-fits-all approach — everything is personalised, evidence-based, and explained clearly. His depth of knowledge in peptides, longevity medicine, and overall health optimisation is exceptional. What really sets Ethan apart is his communication. He’s patient, supportive, and always available to answer questions or make adjustments when needed. I’ve felt guided, understood, and genuinely looked after throughout the entire process. The results have been outstanding. I’ve experienced significant improvements in energy, recovery, mood, and overall wellbeing — far beyond what I expected. If you’re looking for a practitioner who combines expertise, integrity, and a truly human approach, I can wholeheartedly recommend Ethan. He is one of the best professionals in this field.

Dr. Ethan is a truly lovely man who genuinely listens to his patients — and that means a lot. He has helped me so much with my arthritis and chronic fatigue. After being bed-bound for almost four years, I’ve now been working with him for about a year and I can finally get out, enjoy life, and spend time with my family again. What stands out most is how caring and heartfelt he is. You always feel safe talking to him because he really gets to your level — as he often says, he’s a patient himself, so he understands how important it is to feel heard. He’s wonderfully direct, which I appreciate, because you know he’s looking out for your best interests. Yes, I was surprised by the fees at first, but the service is so personal and attentive that it’s absolutely worth it. He treats every patient as important, and I completely trust him. I’m not a particularly sentimental person, but he’s genuinely special — and super funny too! After a year of steady progress, I can honestly say working with Dr. Ethan has been one of the best decisions I’ve made!

Absolutely, Dr. Ethan is eccentric, energetic, and incredibly smart. Beyond being a fantastic doctor, he’s truly an exceptional person! I came to Dr. Ethan after noticing a significant drop in my energy levels over the past few years. He took the time to review my bloodwork and genuinely listen to my concerns before recommending a few therapies that might help. Now, 11 months later, I feel amazing—my brain fog has lifted, my energy is back, and I’m sleeping better than ever. As someone completely new to injectable therapies, I really appreciated how Dr. Ethan guided me through every step. He’s like a walking encyclopedia, so I never had to stress or do endless research myself. Whenever I had questions, his responses were always prompt and reassuring. I can’t recommend his anti-aging services enough. Thank you so much!

Dr Ethan is one of a kind and I highly recommend him to anyone looking for a no-nonsense, friendly, professional, experienced and caring experience with aesthetics and longevity. He listened carefully to my concerns and had a treatment plan ready within minutes. He answered all of my questions and made himself available for a follow-up appointment to demonstrate everything just a few days later. He doesn't push unnecessary treatments, but rather focused on my issues and was willing to discuss the pros and cons of every option. He's also just great fun to be around! Solid five stars, really delighted to do so long-term.

I've been working with The Catalyst Clinic for almost a year now, and I felt compelled to share my story. When I first came in, I was struggling with rheumatoid arthritis and a constant loss of energy. Honestly, I was skeptical and thought all of this was just “hocus pocus.” But I can honestly say—this stuff works! After almost a year, my blood levels are now stabilized, and what used to be chronic, daily pain has been reduced to just minor discomfort. Even more amazing, my hormone and immune system levels are finally normal—something I haven't experienced in over ten years! I'll never forget one of my first visits: I broke down in tears out of sheer frustration, and Dr. Ethan reassured me that he would do everything he could to help. He truly meant it. I probably shouldn't mention this, but when money was tight, Dr. Ethan went out of his way to give me a significant discount so I could continue my therapy. That kind of compassion is rare. I am extremely grateful to Dr. Ethan and the entire team at The Catalyst Clinic. They've given me a quality of life I didn't think was possible anymore. Words can't describe how thankful I am for everything they've done for me. If you're on the fence or feeling hopeless, I highly recommend giving them a chance. They changed my life!

Genius, Just Genius! I cannot recommend Dr. Ethan highly enough! He has literally written the book on peptides, and his expertise shines through in every aspect of his care. After struggling with rheumatoid arthritis for five years, which left me with debilitating issues walking, I was beginning to lose hope. But thanks to Dr. Ethan’s treatment, just three months later, my feet are mobile again and my wrists are about 70% better. This truly feels like a miracle. My mood has perked up and I feel incredible. Dr. Ethan is not only a genius in his field, but he also genuinely cares about his patients. It’s clear he’s motivated by a passion for healing rather than money. His dedication and knowledge have changed my life for the better, and I am incredibly grateful to him for giving me back my mobility and independence. If you’re looking for someone who deeply understands peptides and their potential, Dr. Ethan is the doctor to see!

Working with Ethan over the past four months has been a truly transformative experience. He’s not only extremely knowledgeable in his field, but also brings a rare combination of professionalism, genuine care, and a deep commitment to his clients' well-being. His positive outlook and thoughtful guidance have helped me regain energy, boost my mood, and feel healthier overall—both physically and mentally. Ethan approaches every session with empathy and clarity, creating a space that feels both supportive and motivating. Life feels more like an adventure now, and with his continued support, I’m excited to keep pushing forward toward my goals. Thank you, Ethan. Looking forward to the next phase of this journey together!

Dr Ethan is the kindest and most knowledgeable

The Catalyst Clinic is truly fantastic. The team is welcoming, and it's clear that patient care is the most important thing. I'd highly recommend them to anyone.