Privacy Policy
Last updated · April 2026
Introduction
Keratin Pro Mastery ("the Platform", "the Site") is operated by Sovereign Chain Ltd, a company registered in England and Wales (Company No: 16139802). This professional hair treatment education and product ecosystem is developed for licensed hairdressers and beauty professionals. We are committed to protecting your privacy and being transparent about how we handle your data.
Data We Collect
The Platform stores most data locally on your device. We do not collect, transmit, or store personal data on external servers, except where noted.
Data stored locally on your device includes:
- Course progress and completed lessons
- Quiz scores and earned badges
- Study streak information
- Client records you create
- Booking configuration
- Business card details you enter
- Onboarding preferences
Camera & Photo Usage
The AI Diagnostic tool allows you to photograph hair for analysis. When you use this feature, the photo is sent to our secure cloud service for AI-powered analysis and a treatment recommendation is returned. Photos are processed in real-time and are not stored on our servers after analysis is complete.
Salon Registration
When a professional registers a salon in the Sovereign Directory, we collect the information submitted (salon name, owner name, email, phone, location, website). This information is used to verify and list authorised salons. It is stored securely and will not be shared with third parties.
Data Storage
Platform data is stored using your device's local storage. Salon registration data is stored on our secure server. If you delete the App, all locally stored data will be permanently removed. To request deletion of server-side data, contact us.
Third-Party Services
The Platform uses PostHog for anonymous analytics to understand usage patterns. No personally identifiable information is shared. Sharing features (WhatsApp, email, social media) are handled by the respective apps on your device.
Your Rights
Under UK GDPR, you have the right to:
- Access any data we hold about you
- Request correction of inaccurate data
- Request deletion of your data
- Object to processing of your data
- Data portability
Children's Privacy
The Platform is designed for professional hairdressers and beauty practitioners. It is not intended for use by children under the age of 17.
Contact
For any privacy enquiry, please contact:
info@keratintreatment.co.uk
Sovereign Chain Ltd · Company No: 16139802 · VAT No: 472115591
125 Westmorland Avenue, Luton, Bedfordshire, LU3 2PT, United Kingdom
