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About us

Cutaneous was founded by doctors in aesthetic medicine, dermatology and radiology. We realised that combining our knowledge and experience would lead to better diagnoses as wel as safer and more effective treatments of our patients.

Our combined knowledge and experience has lead to strong synergy that we want to share with colleagues worldwide. That is the reason we founded Cutaneous.

Vision

Cutaneous is founded in 2019 by Dr. Peter Velthuis and Dr. Leonie Schelke. Our vision is to enhance your professional development in cosmetic treatment by deploying ultrasound in your daily practice. We have launched a series facial anatomy i.c.w. ultrasound courses around the globe. Online and Hands-on. We call it the Safe & Sound Learning Experience. ​

Mission

We are committed to teach dermatologists, aesthetic physicians and plastic surgeons the use of ultrasound and facial anatomy. To empower you to raise the bar in quality and safety for ultrasound guided injections. It is our mission to prevent complications in aesthetic dermatology.

Team

Dr. Leonie Schelke
Founder

Dr. Peter Velthuis
Founder | Dermatologist

Ir. Richard Monkel
Advisory board

Nienke van der Kaaij
Director operations

Patrick Waldram
Director Marketing & Product development

Trainers

Dr. Charles Cheng
Senior trainer Cutaneous

J. Mauricio Cerón B. MD
Senior trainer Cutaneous

Dr. Hagai Betzer
Senior trainer Cutaneous

Nicola Lowrey PA-C
Senior trainer Cutaneous

Dawn Naylor DNP, NP-BC, CANs
Senior trainer Cutaneous

Dr. Olga Liplavk
Senior trainer Cutaneous

Dr. Tatjana Water
Trainer Cutaneous

Dr. Michèle Nonahal
Trainer Cutaneous

Dr. Amra Sabanovic
Trainer Cutaneous

Dr. Madeeha Khan
Trainer Cutaneous

Dr. Nazanin Ahmadi M
Trainer Cutaneous

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scientific partners

Cutaneous Facial Ultrasound
Cornelis Schuytstraat 55
1071 JG Amsterdam The Netherlands

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Cutaneous Facial Ultrasound | Cornelis Schuytstraat 55 1071 JG Amsterdam The Netherlands | Facebook | Instagram
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©2025 Cutaneous

Dr. Charles Cheng
Senior trainer Cutaneous

Dr. Charles Cheng is a Faculty of Medicine Clinical Associate Professor at the University of British Columbia in Vancouver, Canada.  With over 33 years of medical aesthetics experience in injectables and EBD’s, he brings a wealth of clinical experience.  As an Adverse Events Consultant for AbbVie Allergan Canada, he has a special interest in ultrasound guided assessment and treatments.  He also serves as a medical science consultant, clinical trials researcher, international speaker, and physician education faculty for major industry partners.  His interests include developing science knowledge and technical skills specific to the Asian population along with considerations for the cultural and ethnic differences. 

Jair Mauricio Cerón Bohórquez M.D
Senior trainer Cutaneous

Jair Mauricio Cerón Bohórquez M.D. is a german-board-certified general surgeon and internationally recognized specialist in ultrasound-guided aesthetic medicine. He completed his medical degree at University Hospital Eppendorf and a six-year surgical residency at Asklepios Medical School in Hamburg, followed by 2 years of advanced training in plastic, aesthetic, and reconstructive surgery at Hannover Medical School. His expertise is further shaped by facial anatomy-dissection training with Dr. Kestemont and Prof. Cotofana, as well as mentorships with global leaders like Arthur Swift, Mauricio de Maio, and Gerhard Sattler in advanced filler, neuromodulator, and liposuction techniques. As owner and medical director of Medical Contour Private Practice and Medical Contour Academy in Hamburg, Mauricio Cerón M.D. is a national and international speaker and trainer (Cynosure-Lutronic, Galderma), a member of leading surgical and aesthetic societies, and holds key positions in global organizations for complication management in medical aesthetics, including CMAC. He is also part of the CUTANEOUS Facial Ultrasound Group NL and SIBUS-IN Board, collaborating with world experts to advance ultrasound-based research and training in the field.

Dr. Hagai Betzer
Senior trainer Cutaneous

Dr. Hagai Betzer heads Aesthetic Medicine Department at Sackler Faculty of Medicine, Tel Aviv University. 16 years of practice in aesthetics medicine and 5 years treating aesthetics complication using Ultrasound guidance. AMWC 2024 Award winner for best complication treatment.
Provides regular physician training worldwide on aesthetics and ultrasound treatments through courses and lectures.

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Nicola Lowrey PA-C
Senior trainer Cutaneous

Nicola earned her Master’s of Physician Assistant Practice degree in 2003 from USC’s Keck School of Medicine.  She is a board certified Physician Associate.

She began her medical career with a focus on Emergency Medicine.  It was in the ER that Nicola was first trained on POCUS (point-of-care ultrasound.)  It was a diagnostic tool that aided in procedures such as I&D’s, vascular access, and central line placement.

Since 2004 Nicola has also worked in Medical Aesthetics. She has always had a passion for facial anatomy and its importance for safety and superior outcomes with injectable procedures.  She has intensively studied facial anatomy and its application to aesthetic medicine for over 20 years.  Having both attended and instructed numerous Donor Facial Anatomy courses and contributing on multiple peer reviewed anatomical publications.

In 2021 Nicola continued her ultrasound education with Cutaneous Facial Ultrasound, under the direct guidance of Dr Leonie Schelke.

Nicola instantly had an intense passion for learning this new skill. She began implementing it into her daily practice immediately.  Not too long after, Nicola was honored to be able to assist Dr Schelke and Dr Peter Velthuis for courses both in the US and across Europe.

She has contributed to several ultrasound based research publications and currently teaches ultrasound courses focusing on anatomy, best injection practices, safety, and complication management.  She has had the honor of presenting on ultrasound for Allergan Medical Institute, N2 Aesthetics Training Center, Swift Beauty, Canadian Association of Medical Aesthetics, SCALE, and CMAC.