Welcome to ARCH – the Association of Registered Colon Hydrotherapists

ARCH is the UK's leading community for colon hydrotherapists. Together we set standards, support our members and spread the word about this effective, natural treatment that we provide for thousands of people, from all walks of life, every week.

ARCH members are passionate about our therapy, because we see on a daily basis the real, positive effects it has on people's lives, whether they're suffering with digestive problems or simply looking for a natural boost to their health and wellbeing.

We're here to help you, whether you want to find a colon hydrotherapist, learn how to become a colon hydrotherapist or just find out more about how ARCH works as a community to inform the public and support our members.

What is colon hydrotherapy?

The therapeutic internal use of water to promote correct bowel function.

About the Association

Founded in 1987, ARCH is the UK’s leading Colon Hydrotherapy organisation

Hydrotherapists Training

We offer the highest standards of hydrotherapists training

Find a therapist

Find a therapist

Find a registered and regulated colon hydrotherapist in your area now.

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