Dr. med. Christian Köhler

MBA, Diploma in Health Economics, Head Doctor, Certified Reviewer and CEO

Dr. med. Christian Köhler has completed many years of operational training and has experience in general surgery, vascular surgery, and plastic and reconstructive surgery. Alone in the reconstructive surgery he has allocated a lot of experience in the specialist areas of hand surgery, burn surgery, reconstructive surgery and cosmetic surgery. Furthermore he specialised very early on the application of medical lasers and minimally invasive techniques in aesthetic surgery by attending numerous workshops and hands-on trainings with renowned plastic surgeons worldwide. His personal mentor and trainer is Dr. Ernesto DiGeronimo from Miama/USA with over 30 years experience.

As a member of the Executive Board at the Swiss Anti-Aging Society, he extended his expertise in this wide-ranging area at an early stage. This reflects the two-year training course at the American Society for Anti-Aging in cooperation with the University of Charleroi, Belgium, which had already begun in 2003. He graduated from this program with a European Master Diploma. Simultaneously Dr. Köhler was trained to become a health economist and Master of Business Administration for Public Health.Professionalism depends on continued further training and networking. As part of his university activities Dr. Köhler has given several lectures at national and international congresses and has written numerous publications.

In Switzerland, he is considered a pioneer in the application of the endoluminal laser therapy and the usage of the Smartlipo or Cellulase technique, in Europe for the pigment treatment with ReCell and also at the Picosure tattoo removal. He also is worldwide known for the breast lift with Threads.

Medical Team

Dr. med. Eugenia Remmel

Specialist in plastic and aesthetic surgery

Dr. med. Eugenia Remmel is a specialist in plastic and aesthetic surgery and has an additional qualification in hand surgery. She has almost 30 years of medical experience and is a member of professional societies. Her academic qualifications include several scientific publications, teaching positions at university hospitals and a research award in the field of surgery. She focusses on gentle treatments with botulinum toxin and fillers, blepharoplasty of the upper eyelid, labia reconstruction, breast augmentation, breast lift and implant replacement, tummy tuck, liposuction and thigh and upper arm lift. With her extensive expertise, she makes it her mission to give customers a new quality of life through individual treatment concepts.

Anouk Zgraggen


Ms. pract. med. Anouk Zgraggen is a qualified doctor. She completed her medical studies at the University of Zurich. As a young doctor with a great interest in aesthetics, she supports the team in the field of non-surgical treatments (so-called soft treatments). In addition to various training courses and workshops, Ms. pract. medical Anouk Zgraggen was able to benefit from his many years of experience in this area, which she gained from working closely with Dr. Köhler. For Ms. Zgraggen, naturalness, precision and individual wishes of her customers come first.

Dr. med. Toofan Datfar


Dr. med. Toofan Datfar, a specialist in surgery, is an experienced expert in the field of aesthetic procedures. After studying medicine at the University of Graz, Austria, he deepened his knowledge in Canada and Australia. In Switzerland he further specialized in aesthetic treatments. Especially in so-called “soft treatments”, such as treatments with botulinum toxin and hyaluronic acid and much more. Dr. Datfar combines expertise and passion to enhance natural beauty using minimally invasive methods. His goal is to increase the self-confidence and well-being of his customers through subtle procedures.


Petra Müller

Petra Müller was already part of the prevention-center team from 2011 to 2013 as a medical practice assistant. She then studied business administration and managed various medical institutions before returning to prevention-center in 2019. Since then, she has managed the Zurich and Zug locations as a practice manager and, since 2023, has been primarily responsible for the company's overarching goals in her new role as COO.

Tamara Nessler


Tamara Nessler has a sound background in business administration and broad knowledge in the area of ​​business development. With her extensive experience in various service industries, she brings unique perspectives and innovative solutions to our team. It ensures smooth, customer-oriented processes and the further development of the company.

Sina Klingler

Practice Manager Zurich

Sina Klingler is a qualified nurse and pharmaceutical assistant. In her professional career, she has already gained experience in various medical fields, which is why she has a lot of medical expertise. As practice manager she is responsible for all personnel matters and for the daily practice operation. She is the contact person for all internal and external questions.


Laura Seeländer


Laura Seeländer completed her education in the service industry. In a renowned Dusseldorf hospital she got to know the daily routine of plastic surgery. Customer satisfaction is Laura's top priority. As the first point of contact, she is responsible for your wishes and concerns and she will be happy to provide detailed information and arrange your next appointment. In addition she supports the management in various business areas.

Giulia Loprete


Giulia Loprete is a trained medical practice assistant. She has a broad medical knowledge and has completed further training in wound healing and wound dressings. She supports the medical team during consultations and follow-up examinations. With her responsible manner, Giulia ensures that the planning of the operation runs smoothly and her empathy ensures your well-being. She will be happy to answer any questions or clarifications you may have!

Liana Solèr


Liana Solèr is a chemist and has completed further training as a medical secretary. She supports the team in scheduling, customer care and follow-up checks. She is also responsible for the entire material management. With her empathic nature, she is always open to your questions or uncertainties.

Mirjam Zender


Mirjam Zender is a qualified cosmetician and has completed further training as a medical secretary. This has enabled her to gain experience in the field of plastic surgery. Mirjam is responsible for the smooth running of our practice in Zug and also supports the office team in Zurich. Her cordial manner will make you feel well taken care of.


Melanie Tobler

Cosmetician & medical Laser Assistant

Melanie Tobler is a certified cosmetician and supports the team in various areas. As an experienced cosmetician and medical laser assistant, she is our expert for all your questions about laser therapy. Your satisfaction is Melanie's first priority.

Tjasa Kozar

Cosmetician & medical Laser Assistant

Tjasa Kozar is a qualified beautician who practices her profession with a lot of passion. She attaches great importance to personal and professional advice. She gives priority to the wellbeing of her customers and with many years of experience in classic and medical cosmetics she offers a professional and conscientious service.

Celina Jensen

Cosmetician & medical Laser Assistant

Celina Jensen is a federally certified beautician and has furthered her education in the field of apparative cosmetics. Celina's top priority is to find the ideal treatment for your needs and to provide you with competent advice.

Ploon Hellendoorn

Expert for Skin Treatments and Medical Laser Assistant

Ploon Hellendoorn comes from the Netherlands, where she successfully completed a Bachelor of Science in skin therapy. She has also trained as a medical laser assistant. For Ploon, the most important thing is that you are not only satisfied with the treatment results, but that you also feel really comfortable in your skin. She does everything she can to ensure that her customers are in good hands in a relaxed atmosphere.


Tiny Skacel

Registered Nurse

Tiny Skacel is an experienced HF nurse and has a broad range of expertise. She has many years of experience in various clinics and hospitals and is the main contact person for INUSpheresis treatments at the prevention-center. She also provides interdisciplinary support to all other departments.


Barbara Jenny

TOA & Instructor, Surgery Management

Barbara Jenny has a wide-ranging training as a technical surgical assistant. This includes all areas up to cardiac surgery, where she worked for many years as head at the University Hospital Zurich.

In addition, she has extensive knowledge in the areas of management, hygiene and personnel management, which she successfully uses today in the organization of workshops and congresses both nationally and internationally.

Romana Schweiger

Surgical Assistant

Romana Schweiger is an experienced technical surgical assistant and is responsible for the smooth running of the operating room.

Antoinette Neyer

Registered Nurse

Antoinette Neyer is a qualified nurse who will look after you lovingly and competently before and after your surgery.

Sonja Brändli

Registered Nurse

As a qualified nurse, Sonja Brändli will ensure your well-being before and after your operation.


Dr. med. Alexandra Kraft

Anesthesiology FMH

Dr. med. Andrea Macak

Anesthesiology FMH

Dr. med. Emanuel Bernhard

Anesthesiology FMH

Dr. med. Orlando Paganoni

Anesthesiology FMH

Dr. med. Thomas Müller

Anesthesiology FMH

Dr. med. Christian Felix

Anesthesiology FMH

Dr. med. Marco Bosshart

Anesthesiology FMH


Anela Tuta

Facility Management

She has been the good soul in the house since the prevention-center opened and ensures impeccable cleanliness and order.

Consultation by arrangement

Dr. med. M. Comber

Specialist in general medicine, FHM and practising physician
Anti-aging specialist


Utoquai 31
8008 Zürich
How to get there

Aabachstrasse 8
6300 Zug
How to get there

Kornhausplatz 7
3011 Bern
How to get there


MO - FR    8 AM - 6 PM


MO - FR    8 AM - 5 PM