Thermalist® — Turn your sauna and cold into a guided experience your members return for
Built on research. Designed for real-world studio delivery.
The Thermalist® Standard for Contrast Therapy
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Structured, guided sessions that create retention.
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Trained instructors delivering consistent experiences.
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Thoughtful experience design that supports premium positioning.
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A science-based approach grounded in physiology and real-world application.
The Science Behind the Thermalist® System
Thermalist® has people and their experience at it's core.
The aim is to deliver the best possible experience and the greatest benefit to each individual. Not just through exposure to cold and heat, but through how it is guided and applied.
This requires an understanding of physiology, psychology, and how the body and mind respond to stress. It includes how the nervous system regulates, how temperature stress is tolerated, and how capacity can vary over time.
Safety and scientific integrity are central to every session. When these are understood, contrast therapy can be delivered in a way that supports both health and experience.
Each session follows a structured approach designed to guide participants through exposure and recovery with care, attention, and consistency.
The Thermalist® System is currently implemented across a growing number of studios and practitioners internationally, ensuring a consistent, safe, and high-quality experience.
Our offerings
Thermalist® At Home (Online)
Achieve optimal health with our science-backed course in cold & heat therapy and breathwork.
Thermalist® Women's Retreat
This is a unique opportunity to experience the Thermalist Method® with Dr. Susanna Søberg — and live as a Thermalist for four days.
From Research to Real-World Application
Developed by Dr. Susanna Søberg, the Thermalist® System is built on over a decade of research in metabolism and contrast therapy.
It bridges the gap between science and practice — translating physiology into a simple, safe, and guided experience that can be delivered consistently in real-world studio environments.
