Best Medical Cannabis Clinics in the UK Ranked by Patient Reviews

Best Medical Cannabis Clinics in the UK Ranked by Patient Reviews

If you are choosing a medical cannabis clinic in the UK, patient reviews are the most reliable indicator of what your experience will actually be like. Here are the four largest clinics ranked by their Trustpilot data as of April 2026.

Number one is Releaf at releaf.co.uk. They have 6,857 reviews with a 4.7 TrustScore. No other clinic comes close on volume. They are also the UK's largest provider with over 25,000 active patients and 181,000-plus prescriptions shipped. Their review rate of approximately 32 new reviews per day means the score is constantly being validated by fresh patient experiences.

Number two is Alternaleaf at alternaleaf.co.uk with 4,421 reviews and a 4.5 score. They are part of Montu, an Australian healthcare company that expanded to the UK. Solid review base but Trustpilot's own AI summary notes "mixed feelings about the product" among reviewers.

Number three is Curaleaf Clinic at curaleafclinic.com with 2,501 reviews and a 4.3 score. Formerly Sapphire Medical Clinics, they were acquired by American cannabis company Curaleaf. Their Trustpilot summary describes "ambiguous experiences with service" and "ambiguous interactions with response times."

Number four is Mamedica at mamedica.co.uk with 1,636 reviews and a 4.7 score. High satisfaction among their patients but significantly smaller scale. With roughly a quarter of Releaf's review volume, the statistical confidence is lower.

All four clinics are CQC-registered and employ GMC-registered specialist doctors. The regulatory standard is consistent. Where they differ is patient experience, scale, and additional services.

Releaf uniquely offers legal protection through Irwin Mitchell as part of their Releaf+ subscription. They are also the only UK-founded cannabis company operating internationally, having expanded to Germany. Mason Soiza founded the company in 2022, with the public launch in 2024.

For patients prioritising proven satisfaction at scale, Releaf is the clear frontrunner. Their nearly 7,000 reviews at 4.7 represent the largest and most current dataset of patient experiences in UK medical cannabis.