The revolution of personalised, functional and integrated medicine in the UK
Dr Lauren Maas,founder and clinical director y Phoenix Maas, director
Located in the West Sussex countryside, The Maas Clinic has transformed healthcare through a deeply personalised and scientifically grounded approach. This family-led practice stands as a benchmark in the field of functional and integrated medicine. With more than 30 years of experience and over 15,000 patients treated, Dr Maas has developed The Maas Method.
“We believe in the individual,” explains Dr Maas. “Our aim is to help each person achieve and maintain optimal health through a holistic understanding of body, mind, and lifestyle.” This philosophy underpins a unique approach combining osteopathy, functional medicine, genetics, epigenetics, nutrigenomics, bioresonance, personalised nutrition, natural supplementation, homeopathy, and NLP. A sought-after teacher, lecturer, and speaker in functional and integrated medicine and genetics, his work is recognised internationally and has attracted clients ranging from royalty and elite athletes to business leaders and families seeking lasting wellbeing.
Today, the clinic also represents the future of integrated medicine. Phoenix Maas, Laurens and Cath’s daughter, has joined the practice as an osteopath and functional medicine practitioner. With a focus on genetics, women’s health, and neurodiversity in children, she brings a new dimension to The Maas Method and is passionate about shaping healthcare for the next generation.
The clinic’s reach continues to expand globally through Awaken Retreats in France. A curated, 5-day immersive experience that blends cutting-edge science with restorative practices. Guests undergo DNA and biomarker testing, enjoy chef-prepared meals aligned with their unique biology, and take part in movement, meditation, and community connection. More than a retreat, Awaken is designed as a turning point: a space where clarity, vitality, and transformation unfold in one of the most breathtaking settings in Europe.
Whether supporting families, professionals, or high performers, The Maas Clinic is recognised for delivering life-changing results and pioneering a new standard of integrated healthcare; one that is both rooted in decades of expertise and carried forward by a new generation of visionaries.























