If you’re wondering how many colonics you need before booking your first session, you’re asking exactly the right question — and the most honest answer is that it depends. At Phenomenal Colonics in Belsize Park, Marijke Vogel doesn’t work from a fixed protocol. Her recommendations are shaped by the individual in front of her: their health history, how their body responded during the session, and what they’re hoping to achieve.
This guide walks through the key factors that influence how many sessions may be right for you, what to expect at the end of your appointment, and how Marijke approaches this question in practice.
Is One Colonic Session Enough?
For some clients, a single session is genuinely all they need — at least for now. If you’re coming to Phenomenal Colonics feeling broadly well, simply curious about the therapy, or looking for a one-off digestive reset after a period of stress or overindulgence, one treatment may serve its purpose completely.
Marijke doesn’t operate on the assumption that every client must return for multiple sessions. Recommending a fixed course of appointments upfront — before even knowing how your body responds — is an approach more common in high-volume, lower-cost clinics than in experienced, individually focused practice. At Phenomenal Colonics, the recommendation you receive at the end of your session reflects your individual response to treatment, nothing else.
That said, for clients with longer-standing digestive concerns, one session is rarely the full picture. Marijke will always tell you honestly if she feels a follow-up would be of benefit.
How Often Should You Have a Colonic?
Where a follow-up session does make sense, Marijke typically suggests returning around one to two months later. This spacing gives the body time to respond and settle following treatment, rather than scheduling sessions too close together before you’ve had a chance to notice any changes.
That said, some clients choose to come much more frequently — weekly, in some cases. This is entirely their decision, shaped by their own health goals and how they feel colonic hydrotherapy fits into their wider wellness routine. For clients who find regular sessions genuinely support their energy, digestion, and overall sense of wellbeing, there is no fixed upper limit imposed at Phenomenal Colonics. Marijke respects that each client knows their own body, and she’ll always offer her professional view if she feels a different approach might serve someone better.
For most clients, though, the interval isn’t fixed — it depends on how you felt in the weeks after your first session, whether you noticed shifts in your digestion, energy, or general wellbeing, and what Marijke discussed with you at the end of the appointment. Some clients naturally settle into a rhythm of seasonal sessions, returning two to four times a year as part of a broader approach to health. Others come once and feel no need to return — and that’s entirely fine too.
What Factors Influence How Many Sessions You May Benefit From?
Several things shape how Marijke approaches her post-session recommendations.
How your body responded during the session. The way the body behaves during treatment tells Marijke a great deal. How far around the bowel the water was able to travel, how much gas was present at the start, and how you felt throughout all provide useful information about your digestive picture.
Your health background. Before your session, you’ll complete a five-page health questionnaire, which Marijke reads before you come in. The substantive conversation about your health happens during the treatment itself, and together these give her a fuller sense of your digestive history, diet, lifestyle, and relevant health considerations.
What you’re hoping to achieve. Clients come to Phenomenal Colonics for a wide range of reasons, from general wellness to specific digestive concerns. Your goals naturally shape what Marijke may suggest.
How you feel in the days that follow. Marijke encourages clients to pay attention to any changes in digestion, energy, sleep, or mood in the days after their session. That feedback is genuinely useful when weighing up whether a follow-up might help.
How Many Colonics Per Year Is Right for You?
There’s no universal answer. Some clients find that one or two sessions a year fits naturally into their health routine; others come more frequently during periods when they feel their digestion needs additional support.
What Marijke does caution against is booking sessions without a clear sense of why. Colonic hydrotherapy is a purposeful therapy, not something to be done on autopilot. If you’re returning because you found genuine benefit and feel the timing is right, that’s a meaningful reason. If you’re returning out of habit, or because you feel you ought to, it’s worth pausing to consider whether a session is actually what your body needs right now.
The aim at Phenomenal Colonics is always to give you the information and confidence to make that judgement for yourself — not to create dependency on ongoing treatment.
What Will Marijke Recommend at the End of My Session?
At the end of every session, Marijke takes time to share what she observed during treatment and to discuss whether a follow-up may be worthwhile. She’ll also offer tailored recommendations on diet, hydration, and supplements where relevant, along with sample products to take away and consider.
This closing conversation is one of the most valuable parts of the appointment. Rather than leaving with a vague sense of whether the treatment helped, you’ll have clear, personalised guidance to take home.
If Marijke feels a follow-up would support your health goals, she’ll say so — along with a suggested timeframe. If she feels one session has done what it needed to, she’ll say that instead. You can read more about what to expect during the session itself in our guide for first-time clients — update with live slug.
Colonic hydrotherapy is accredited in the UK by ARCH, the Association and Register of Colon Hydrotherapists, which sets the professional standards for training and practice. Marijke is a longstanding ARCH-accredited member.
Ready to Book?
How many colonics you need is a question Marijke can answer far more usefully after she’s met you than before. The best starting point is simply to come in for your first session and see how your body responds.
Book a colonic at Phenomenal Colonics or get in touch via WhatsApp or phone to discuss your situation with Marijke directly. She’s happy to answer questions before you commit to an appointment.
This content is for informational purposes only and does not constitute medical advice. Always consult your GP or a qualified healthcare professional before beginning any new health treatment.
About the Author of How many colonics do I need
Marijke Vogel is an ARCH-accredited colon hydrotherapist and qualified naturopath, herbalist, and iridologist with over 25 years of clinical experience. She practises at Balance On The Lane, 16 England’s Lane, Belsize Park, London NW3 4TG. CNHC registration number: CNHC04200.
