Digital weight-loss clinics
Yazen
A Swedish-run coaching-and-medication subscription with no current UK company registration and a 2025 ASA ad ruling against it.
Data verified 1–2 August 2026 · methodology
Site preview from Yazen’s own published social-preview image · © Yazen Health AB (Sweden-headquartered parent, founded 2021). Former UK subsidiary YAZEN LTD (company no. 14473843) was dissolved 16 Apr 2024; no active UK-registered entity was found operating the service as of 2 Aug 2026.
Our review
Yazen is a fully online, app-based programme from Yazen Health AB, regulated in Sweden, pairing doctor-prescribed GLP-1 medication with a coach, dietitian and psychologist. Its UK limited company was dissolved in April 2024, and no active UK entity, CQC registration, GPhC number, or pharmacy partner name is disclosed on the site. The programme starts with a free consultation, then a "Change" phase subscription from £74/month plus medication typically costing £50–£100/month, an optional £119 health check, and a 30-day money-back guarantee. Trustpilot rates it 4 out of 5 from around 3,834 reviews; reviewers report it as effective for sustained weight management with strong app-based support, while others describe the monthly cost as expensive for a long-term commitment. In 2025 the ASA banned a paid Instagram post promoting Yazen for improperly advertising a prescription-only medicine to the public. Best for those comfortable with a cross-border provider that discloses no UK regulatory registration.
Verification
- Legal name
- Yazen Health AB (Sweden-headquartered parent, founded 2021). Former UK subsidiary YAZEN LTD (company no. 14473843) was dissolved 16 Apr 2024; no active UK-registered entity was found operating the service as of 2 Aug 2026.
- Companies House
- 14473843 (YAZEN LTD — dissolved 16 Apr 2024; no active UK Companies House entity found)
- Address
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ (former registered office of dissolved YAZEN LTD; no current UK premises address is published on site)
- help@yazen.com
- Website
- yazen.com/uk
How it works
Fully online/app-based subscription program (no physical UK clinics). Includes a free initial consultation, then a doctor-led medical assessment and prescribing (Yazen is regulated in Sweden under the Health and Medical Care Act / Patient Data Act / Patient Security Act and registered with the Swedish Health and Social Care Inspectorate, IVO), plus a personal coach, dietitian and psychologist support via the app. Medication is dispensed through an unnamed 'leading online pharmacy' partner. UK-specific GPhC/CQC registration is not disclosed on the site.
Medications & prices
| Medication | Doses & prices as listed | Source |
|---|---|---|
| GLP-1 medication (specific brand not itemized on site) | Not broken out by drug/dose on the public site; site states medication typically costs £50–£100/month in addition to the subscription fee | checked 1–2 August 2026 |
Consultation & fees: Initial consultation free. Optional/required health check & blood test £119 (waived if results from the last 12 months are available). 'Change' phase subscription from £74/month; discounted 'Clarity' maintenance phase after initial period. 30-day money-back guarantee. Patients commit to a 4-week (per-pen) minimum each time medication is prescribed.
What reviewers say
Praised
- · Praised as effective for losing and sustaining weight ('worth every penny')
- · 24/7-style app support and access to a full team (doctor, coach, psychologist)
- · Informative program content and structured guidance
Complained about
- · Monthly subscription fees seen as expensive / not accessible for a long-term commitment
- · Direct WebFetch to Trustpilot was blocked (403), so this list is based on search-indexed snippets only and may be incomplete
Things to know
- ASA ruling (2025, ref G25-1278617) banned a paid Instagram post by Gemma Collins promoting Yazen for breaching CAP Code rule 12.12 by effectively promoting a prescription-only medicine (POM) to the public; ASA/MHRA told Yazen Health not to promote POMs to the public again
- UK limited company (YAZEN LTD) was dissolved in April 2024; the service now operates cross-border from Sweden with no UK CQC or GPhC registration disclosed, and no current UK phone number or address is published
- No pharmacy partner name, GPhC premises number, or distance-selling-pharmacy logo could be found on the fetched pages
Reader reviews
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Independent editorial profile — Tiro takes no commission and accepts no payment for placement. Details were verified 1–2 August 2026 and may have changed; always confirm on the provider’s own site. Not medical advice. Provider: spotted an error? Contact us.