Last updated: April 2026
This privacy policy explains how Marijke Vogel, trading as Phenomenal Colonics, collects, uses, and protects your personal data when you visit phenomenalcolonics.com or make an enquiry about our services.
1. Who We Are (Data Controller)
The data controller for this website is:
Marijke Vogel
Trading as Phenomenal Colonics
Balance On The Lane
16 England’s Lane
Belsize Park
London NW3 4TG
Email: marijke@phenomenalcolonics.com
Phone: +44 (0)7982 831239
2. What Personal Data We Collect
We may collect the following categories of personal data:
Contact and enquiry data
When you contact us by phone, email, or WhatsApp, we collect your name, phone number, email address, and the content of your message. If you provide health information as part of your enquiry, this is treated as special category data and handled with additional care.
Health information
As a colonic hydrotherapy practice, we collect health information relevant to your treatment, including information provided in our pre-session health questionnaire. This is used solely to assess suitability for treatment and to provide safe, appropriate care.
Website usage data
When you visit our website, we collect anonymised data about how you interact with our pages, including pages visited, time spent on the site, and the device and browser used. This is collected via Google Analytics 4 (GA4) only after you have given your consent.
Cookie data
We use cookies to help our website function and, with your consent, to analyse traffic. Full details are in our Cookie Policy below.
3. How We Use Your Personal Data
We use your personal data for the following purposes:
| Purpose | Lawful Basis |
|---|---|
| Responding to enquiries about our services | Legitimate interests |
| Booking and managing appointments | Performance of a contract |
| Assessing suitability for treatment | Vital interests / explicit consent for health data |
| Analysing website traffic to improve our site | Consent (via cookie banner) |
| Complying with legal and regulatory obligations | Legal obligation |
We do not use your personal data for automated decision-making or profiling.
4. Special Category Data (Health Information)
Health information is special category data under UK GDPR. We collect this only where it is necessary to provide safe colonic hydrotherapy treatment. We rely on your explicit consent and the substantial public interest basis for processing health data in a healthcare context.
Health information provided to us is:
- Used only to assess and deliver your treatment
- Not shared with third parties except where required by law
- Retained only for as long as necessary for clinical and legal purposes
- Stored securely and accessible only to Marijke Vogel
5. Who We Share Your Data With
We do not sell your personal data. We may share data with the following third-party service providers where necessary to operate this website:
Google Analytics (Google LLC)
Used to analyse website traffic. Data is anonymised and only collected after consent is given. Google may process data in the United States under Standard Contractual Clauses. See Google’s privacy policy at policies.google.com/privacy.
Google Tag Manager (Google LLC)
Used to manage tracking scripts on our website. No personal data is stored by Tag Manager itself.
CookieYes (Digital Ignite Ltd)
Used to manage cookie consent on our website. Stores your consent preferences. See cookieyes.com/privacy-policy.
Trustindex
Used to display Google reviews on our website. See trustindex.io/privacy-policy.
Google Ads (Google LLC)
Where advertising is active, Google Ads may be used to measure the effectiveness of our advertising. This only operates with your consent. See policies.google.com/privacy.
We require all third-party providers to respect the security of your personal data and to treat it in accordance with the law.
6. International Transfers
Some of our third-party service providers (including Google) are based outside the UK and European Economic Area. Where data is transferred internationally, we ensure appropriate safeguards are in place, including Standard Contractual Clauses approved by the UK Information Commissioner’s Office.
7. How Long We Keep Your Data
| Type of data | Retention period |
|---|---|
| Enquiry and contact data | 2 years from last contact |
| Appointment and health records | 7 years (in line with health record best practice) |
| Website analytics data | 14 months (GA4 default, configured in our property settings) |
| Cookie consent records | 1 year |
After the relevant retention period, your data is securely deleted.
8. Your Rights Under UK GDPR
You have the following rights regarding your personal data:
Right of access — You can request a copy of the personal data we hold about you.
Right to rectification — You can ask us to correct inaccurate or incomplete data.
Right to erasure — You can ask us to delete your personal data where there is no compelling reason for us to continue processing it.
Right to restrict processing — You can ask us to restrict how we use your data in certain circumstances.
Right to data portability — You can request your data in a structured, commonly used format.
Right to object — You can object to processing based on legitimate interests.
Right to withdraw consent — Where processing is based on consent (such as analytics cookies), you can withdraw consent at any time using our cookie banner or by contacting us directly.
Rights related to automated decision-making — We do not carry out automated decision-making or profiling, so this right does not apply.
To exercise any of these rights, please contact us at maryke@phenomenalcolonics.com. We will respond within one calendar month.
9. Right to Lodge a Complaint
If you are unhappy with how we have handled your personal data, you have the right to lodge a complaint with the Information Commissioner’s Office (ICO), the UK supervisory authority for data protection.
ICO contact details:
Website: ico.org.uk
Helpline: 0303 123 1113
Address: Information Commissioner’s Office, Wycliffe House, Water Lane, Wilmslow, Cheshire SK9 5AF
We would, however, appreciate the opportunity to address your concerns directly before you contact the ICO. Please contact us first at maryke@phenomenalcolonics.com.
10. How We Protect Your Data
We take appropriate technical and organisational measures to protect your personal data against unauthorised access, loss, or disclosure. These include:
- HTTPS encryption across the entire website
- Secure storage of any physical records held at our clinic
- Access to personal data limited to Marijke Vogel only
- Use of reputable, GDPR-compliant third-party service providers
11. Cookie Policy
Our website uses cookies. A cookie is a small text file placed on your device when you visit a website.
Necessary cookies — These are required for the website to function and cannot be switched off. They include cookies that remember your consent preferences.
Analytics cookies — We use Google Analytics to understand how visitors use our website. These cookies are only placed after you give your consent via our cookie banner.
Advertising cookies — If Google Ads is active, advertising cookies may be placed after your consent is given. These help measure the effectiveness of our advertising.
You can manage your cookie preferences at any time by clicking the cookie settings link in the footer of our website, or by adjusting your browser settings. Please note that disabling certain cookies may affect how the website functions.
For a full list of cookies we use, including their names, purposes, and durations, please see our cookie list managed by CookieYes.
12. Changes to This Privacy Policy
We may update this privacy policy from time to time. The date at the top of this page shows when it was last updated. Where changes are significant, we will make this clear on the website.
13. Contact Us
If you have any questions about this privacy policy or how we handle your personal data, please contact:
Marijke Vogel
Phenomenal Colonics
Balance On The Lane, 16 England’s Lane, Belsize Park, London NW3 4TG
Email: maryke@phenomenalcolonics.com
Phone: +44 (0)7982 831239
Phenomenal Colonics is the trading name of Marijke Vogel, sole trader. Marijke Vogel is registered with the Complementary and Natural Healthcare Council (CNHC04200) and is accredited by the Association of Registered Colon Hydrotherapists (ARCH).
