Our Doctors
Welcome to Aura Clinic by Radium, where our dedicated team of doctors is at the heart of everything we do. With a passion for enhancing your health and beauty, our practitioners combine advanced medical expertise with a personalized approach to care. Our doctors are leaders in the fields, specializing in aesthetic medicine and regenerative therapies. We continually seek out new knowledge and techniques, integrating cutting-edge treatments that offer exceptional results. From non-surgical facelifts to regenerative therapies that promote healing and rejuvenation, our doctors offer a comprehensive range of options to help you achieve your desired look and feel by embracing a holistic philosophy that emphasizes the connection between mind, body, and spirit. By addressing all aspects of health, including lifestyle and emotional well-being, we empower you to achieve lasting results that enhance your quality of life.
Dr Siew Tuck Wah
Medical Advisor
Dr Siew Tuck Wah is regarded as one of the experts and leaders in the field of aesthetic medicine, with a special interest in the use of injectable treatments for facial sculpting, anti-aging and rejuvenation with natural outcomes. Besides seeing patients, Dr Siew dedicates time to mentoring and teaching other doctors, writing, and research. In doing so, he hopes to contribute to improving the safety and practice standards of anti-aging medicine. He is regularly invited to share his experiences at locally and internationally.
Dr Siew is the medical director and founder of Radium Medical Aesthetics, where he brings his practice philosophies to life – innovation, service excellence, safety, integrity, kindness and professionalism.
Dr Siew is also a forceful animal welfare advocate. He is the co-founder and President of SOSD (formerly “Save Our Street Dogs”), one of Singapore’s largest animal rescue charities. He has been a key driver of numerous animal welfare initiatives and legislative in Singapore, including the implementation of neutering, rather than culling, as a means of stray dog population control.
Qualifications & Certifications:
M.B.B.S
National University of Singapore
Key Opinion Leader, Speaker, Mentor:
Merz Aesthetics
Mastelli - Plinest
IBSA Pharma - Profhilo
Neauvia Fillers
Lutronic Laser Devices
Fotona Dynamis
Specialties:
Facial Fillers and Injectables :
Facial Sculpting, Anti-aging and rejuvenation with Hyaluronic Acid Fillers, Biostimulaters, Semi-permanent fillers
Speaker, Teacher and Mentor for Belotero fillers, Neauvia Fillers, Radiesse, Ellanse
Skin Ant-Aging:
Skin rejuvenation and regeneration, wrinkle reduction, pigmentation, with energy based devices, injectables, combination treatments.
Speaker, Teacher and Mentor for Plinest, Profhilo.
Skin Lifting:
Non surgical face lift and skin lifting with energy based devices and injectables
Speaker and Trainer for Silhouette Soft thread lift.
Global Expert, Speaker and Mentor for Ultherapy
Dr Kathryn Koh
Medical Director
Dr. Kathryn Koh is the Medical Director of Aura Clinic, where she brings a decade of expertise in aesthetic medicine and a passion for helping patients look and feel their best. A graduate of the University College Dublin, Dr. Kathryn combines medical precision with an artistic eye for beauty — believing that true aesthetics lies in enhancing, not changing, one’s natural features.
Known for her gentle hands and refined sense of proportion, she has earned the trust of countless patients who value subtle, natural results that radiate confidence. Her philosophy centers on balance, grace, and individualized care — ensuring every treatment plan is thoughtfully tailored to the unique needs of each client.
Beyond her clinical work, Dr. Kathryn is also a certified trainer for Plinest, where she shares her techniques and insights with other medical professionals, contributing to the advancement of safe, evidence-based aesthetic practice. At Aura Clinic, she continues to inspire both patients and peers with her dedication, artistry, and unwavering commitment to bringing out every person’s best self.