Privacy Policy
Last updated: 15 August 2026
Systems Trichology London Ltd (“we”, “us”) respects your privacy. This policy explains what personal information we collect when you use k11.co or buy systemK11, why we collect it, and what rights you have.
1. Who we are
SYSTEMS TRICHOLOGY LONDON LTD, registered in England and Wales, company number 12114910.
Registered office: 17 Blanchard Close, London, SE9 4TZ, United Kingdom.
Correspondence: 15 Bishopsgate, London, EC2N 3AR, United Kingdom.
Privacy contact: support@k11.co
2. What we collect
When you buy: your name, email address, delivery address, billing address, telephone number (if given), order history and subscription status.
Payment information: processed directly by Stripe. We receive only the last four digits of your card, the card brand, and the result of the transaction. We never see or store your full card number, expiry date or security code.
When you contact us: your name, email address, and whatever you tell us in your message.
Automatically: basic technical data such as IP address, browser type, device type, pages viewed and time of visit, collected by our website host (Framer) for security and aggregate traffic measurement.
We do not run third-party advertising or tracking pixels on this website. There is no Meta Pixel, no Google Ads tag and no TikTok pixel on k11.co.
3. Health information
We do not ask for, and you should not send us, information about your health, medical conditions or medications. If you volunteer such information in a support email we will use it only to answer you, and we will delete it when the query is closed.
4. Why we use it, and our legal basis
Purpose
Legal basis (UK/EU GDPR)
Process and deliver your order
Performance of a contract
Manage your subscription and take renewal payments
Performance of a contract
Send order, dispatch and renewal-reminder emails
Performance of a contract
Answer your questions
Legitimate interests (customer service)
Prevent fraud and secure the site
Legitimate interests / legal obligation
Keep accounting and tax records
Legal obligation
Send marketing emails
Your consent — you can withdraw it at any time
5. Who we share it with
We share only what is necessary, with:
Stripe, Inc. — payment processing and subscription billing. Stripe’s privacy policy
ShipBob, Inc. — order fulfilment and delivery. They receive your name, address and phone number so they can ship to you.
Carriers (e.g. UPS, USPS, FedEx) — for delivery.
Framer — website hosting.
Our email provider — to send order and service emails.
Professional advisers, accountants and regulators — where we are required to.
We do not sell your personal information, and we do not share it for cross-context behavioural advertising.
6. International transfers
We are a UK company and your data may be transferred between the United States and the United Kingdom. Where personal data leaves the UK or EEA, we rely on the UK International Data Transfer Addendum, Standard Contractual Clauses, or an adequacy decision, as applicable.
7. How long we keep it
Order and transaction records: 7 years, to meet UK tax and accounting requirements.
Subscription records: for the life of the subscription and 7 years after.
Support correspondence: 2 years.
Marketing consent records: until you withdraw consent, plus 2 years.
8. Your rights
If you are in the United States, depending on your state (including California, Colorado, Connecticut, Virginia, Texas and others), you may have the right to:
Know what personal information we have collected about you and how we use it;
Access a copy of it;
Correct inaccurate information;
Delete it, subject to our legal record-keeping obligations;
Opt out of sale, sharing, or targeted advertising — we do not do any of these, so there is nothing to opt out of;
Not be discriminated against for exercising any of these rights.
California residents: we do not sell or share personal information as those terms are defined by the California Consumer Privacy Act. We do not process sensitive personal information for purposes requiring a right to limit.
If you are in the UK or EU, you additionally have the right to object to processing, to restrict processing, to data portability, and to lodge a complaint with the UK Information Commissioner’s Office at ico.org.uk.
To exercise any right, email support@k11.co. We will verify your identity by confirming details of an order you placed, and respond within 45 days (US) or one month (UK/EU). You may use an authorised agent; we may ask for proof of their authority.
9. Marketing emails
We only send marketing email to people who have opted in. Every marketing email has an unsubscribe link that works immediately. Unsubscribing from marketing does not stop order, dispatch and renewal-reminder emails, which are part of your contract with us.
10. Cookies
We use only the cookies necessary to make the site work and keep it secure, plus aggregate, non-identifying traffic measurement provided by our website host. We do not use advertising or cross-site tracking cookies. You can block or delete cookies in your browser settings; strictly necessary cookies cannot be turned off without breaking checkout.
11. Security
We use HTTPS across the site, and payment card data is handled entirely within Stripe’s PCI DSS Level 1 certified environment. No system is perfectly secure, but we take reasonable technical and organisational measures to protect your information.
12. Children
This website and systemK11 are not intended for anyone under 18. We do not knowingly collect information from children. If you believe a child has given us information, email support@k11.co and we will delete it.
13. Changes
We will post any changes here and update the date at the top. If a change materially affects how we use your information, we will email you.
14. Contact
Systems Trichology London Ltd, 15 Bishopsgate, London, EC2N 3AR, United Kingdom
support@k11.co · +44 20 4604 1046