WELCOME TO
A SANCTUARY
WHERE SCIENCE
MEETS INTUITION
ON THE PATH TO
HEALING AND
WELL-BEING.
WE OFFER A HOLISTIC APPROACH TO HEALTH
THAT SPEAKS TO INDIVIDUALS AROUND THE GLOBE
The International Institute of Holistic Health is designed to be a sanctuary where science meets intuition on the path to healing and well-being. Founded by Dr. Sarah Mathier and Maurice Nsabimana, the institute is passionately dedicated to decoding the intricate processes of health through a blend of scientific research, cutting-edge technology, intuitive presence, and, most of all, compassion. Our mission is to bridge the gap between spirituality and science, offering a holistic approach to health that speaks to individuals around the globe. With partners in the US, Europe, and Africa, we are committed to excellence, providing relief from stress, and creating a soulful environment where everyone feels welcomed and invited to recharge. Join us on this lifelong journey to discover the profound connections that foster relaxation and well-being.
MEET OUR FOUNDERS

Dr. Sarah Mathier, Ph.D. in Integrative Medicine
Co-founder of the International Institute of Holistic Health
Dr. Sarah Mathier is the co-founder of the International Institute of Holistic Health. She is a consciousness enthusiast and most interested in the interplay between science and intuition. After studying and working in medicine, she expanded her knowledge of applied Quantum physics. She developed a communication method that allows the recipients’ biofield to be mirrored to find the root causes of a person’s mental and psychological structures. Intuitive forces and physical needs are interdependent. It is of great interest to her to align them, using the newest technologies and the power of contemplation and witnessing.
Mathier holds degrees in arts and theatre (Germany), medical massage therapy (Austria), and nursing (Switzerland). After completing her studies at Quantum University, she now holds a Ph.D. in Integrative Medicine.

Maurice Nsabimana
Maurice Nsabimana is the co-founder of the International Institute of Holistic Health. He is an applied technologist, conscious inner engineer, meditator, and data nerd. His research interests lie at the intersection of psychology, neuroscience, meditation, and other fields of inquiry that have increased the scientific understanding of the mechanisms behind human experiences like peace, compassion, embodiment, love, and our sense of who and what we are, and in the development of new, practical methods and technologies that can unlock human potential in a way that serves all.
He works as a statistician for an international organization. Nsabimana has previously worked in the private sector, civil society, and as a think-tank. Nsabimana holds an M.A. in international affairs from the School of International and Public Affairs at Columbia University and a B.Sc. in Computer Science from Vesalius College in Brussels, Belgium.
LEARN THE FASCINATING HISTORY OF SAVAGE MILL

A former cotton mill that has been lovingly restored, Savage Mill today is a unique shopping, activity, and dining destination.
HERE IS WHAT CLIENTS HAVE TO SAY
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Tanya K
I have recently tried the theta chamber and was really impressed how effective the treatment was! Maurice was very informative and explained in great details how the chamber works and what to expect. First, I am very sensitive to motion and get motion sick easily, but was pleasantly surprised that I did not feel any movement in the chamber except for very gentle floating/rocking-like sensation that felt very soothing and relaxing. Second, I’ve been under elevated stress lately, which was the reason I came to try theta chamber, and I felt so much better after the treatment! I felt like the heaviness has lifted off my chest and my head felt so much clearer! I will definitely be back! And I highly recommend this treatment to anyone!
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Jessica Sharp
I am so delighted with my experience at IIHH! Sarah is incredible, brilliant, and warm. She truly creates such a caring, welcoming environment. Just thinking about the experience writing this review I feel the relaxation and care in my body weeks later. I have done the Theta Chamber sessions multiple times and really felt such a shift in my wellbeing. Sarah helped me contextualize some themes from my energy body and personal life to set intentions for each of my sessions. If you are new to the Theta Chamber I would say try it 2 or 3 times - my first session took some getting used to the sensory aspects, and afterward I was fatigued. But the following sessions left me feeling wonderful - so don’t give up! The soothing effects of the chamber and having space held for you by the kind and caring staff are so worth it!
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S Kaushik
Great nice place with Theta Chamber, TheraPhi Cold Atmospheric Plasma Therapy and RF Inner-Cleanse Foot Detox. I tried out the Theta Chamber and it was very relaxing. Try it out you will like it. Plus, there's a Roggenart Bakery right there, so you can grab some yummy European pastries while you're at it! Parking may be a bit tight, but don't worry you can park in the Big lot.
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Mage B
I visited this location for the first time recently and am impressed by the setup/flow of things. For example, there are a line of kiosks in the entrance for patients to check in & make payments on, making the process run smoother. As for the visit, It did feel a bit rushed but it was understandable as any delay could delay the next appointment and they seem to be very punctual on appointments from my experience. The staff I interacted with were all very friendly, I had no issues.
UPDATE: After trying several sessions of the Theta Chamber, I feel confident enough to post an update. Initially, I went in mainly for chronic pain, the rest was for managing anxiety & stress and I am thrilled to say that the Theta chamber yields a mass improvement on: - Chronic back pain (Noticed immediately after the first, then more drastically by session 3) - Overall mood (Immediate & continuous, unless having a reactive response to a situation) - Stress (Immediate after the first, then drastically by session 3) - Anxiety (Immediate, but more so by session 2) My takeaway here is that this is an extremely beneficial method of treatment in my experience, and I hope others come by to give a try to experience it for themselves. Also ~ This equipment has programs to help with other ailments outside of what I listed/came in for, which is worth looking into. I visited this practice a few weeks ago to try the Theraphi system for pain , stress & anxiety and can say that I left feeling much better than I started. I do recommend this for anyone seeking alternative treatments for pain or stress, it may be different for most but I felt the majority of relief a few hours later. Will be visiting again soon 🙂
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Nancy Killen
Wonderful treatment and Sarah is really nice to work with and very knowledgeable as well as easy to talk to. The foot detox seems to work really nicely for me!
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