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Supplement Quality Standards & Certifications
At Welzo, we believe that public trust in healthcare begins with verified expertise and scientific accountability.
Our Expert Verified™ Program ensures that every supplement partner we approve meets the highest standards of safety, efficacy and transparency, as verified by our medical and scientific leadership team.
This policy outlines the comprehensive framework through which Welzo evaluates, verifies, and continuously monitors supplement suppliers before allowing their products to appear on Welzo.
Our Medical Oversight & Governance
The Welzo Expert Verified™ Program is developed and overseen by the Welzo Clinical Board, led by:
Dr Sameer Nakedar, MBBS, MRCGP – Chief Medical Officer, responsible for medical governance, evidence evaluation, and product risk assessment.
Dr Mathilde Mbouck, MD, MSc Occupational Health – Ensures workplace and consumer safety standards across supplier operations.
Dr Jabulani Sidle, MD – Oversees clinical integration of international suppliers and U.S. compliance.
Dr Zeeshan Afzal, PhD, Nutrition Science – Leads nutritional research verification and supplement efficacy reviews.
Dr Blen Tesfu, MD – Supervises ongoing supplier content audits.
Supported by Founder & CEO Adonis Hakkim and the Quality Assurance Lead Thomas Daniel, ensuring operational transparency and data integrity.
Every product and supplier approved under this framework has been reviewed by licensed clinicians or scientists—providing a direct human link between clinical expertise and consumer safety.
Purpose of This Policy
This document defines the mandatory standards for supplement suppliers wishing to join the Welzo Expert Verified™ Program.
Its goal is to protect consumers through scientific validation, ethical sourcing, and transparent regulatory compliance.
Approved partners receive the Expert Verified™ Seal, confirming that their supplements have been:
Audited by Welzo’s medical and quality assurance teams.
Verified against UK, EU and international safety standards.
Tested independently by UKAS-accredited laboratories.
1. Scientific & Clinical Quality Framework
Each supplier must align with the following pillars of quality assurance:
Evidence-Based Formulation: Ingredients must have peer-reviewed scientific support. Welzo references studies from the British Journal of Nutrition and European Food Safety Authority (EFSA) to guide ingredient approval.
Third-Party Validation: Products undergo chemical and microbiological testing at ISO 17025-accredited labs to confirm purity and potency.
Full Traceability: Every raw ingredient and production batch must be documented and traceable.
Ethical & Sustainable Sourcing: Compliance with UK Modern Slavery Act 2015 and EU sustainability frameworks.
Clinical Review: Final approval rests with Welzo’s medical board, including doctors registered with the General Medical Council (GMC).
2. Mandatory Supplier Vetting Process
Before onboarding, each supplier must complete:
Certification & Regulatory Review – proof of GMP, ISO 9001, ISO 22000, and MHRA compliance.
Facility Audit – site inspections may be conducted by Welzo or independent assessors.
Product Testing – third-party verification for heavy metals, contaminants, and active ingredients.
Pharmacist Validation – GPhC-registered pharmacists confirm label accuracy and safe dosage formulations.
Final Approval – signed off by Welzo’s Chief Medical Officer.
Required Global & UK Certification Standards
Manufacturing & Quality
Good Manufacturing Practice (GMP) – assures consistency and quality.
ISO 9001 – Quality Management Systems ensuring continual improvement.
ISO 22000 – Food Safety Management System.
HACCP – hazard analysis and critical control compliance.
MHRA Registration (UK) – for medicinal-class supplements.
FDA cGMP (US) – for imported products.
Product-Specific & Ethical
NSF Certified for Sport®
Informed Sport / Informed Choice
Organic Certification (Soil Association)
Vegan or Vegetarian Society Approved
Non-GMO Verified
Independent Laboratory Testing
Every approved supplement must be verified by UKAS-accredited laboratories holding ISO 17025, 15189, or 13485 certifications.
Tests confirm:
Ingredient identity & purity
Absence of banned or unsafe substances
Compliance with UK nutritional labelling laws
Continuous Compliance & Monitoring
Welzo conducts:
Bi-annual supplier audits with risk-based reviews.
Random batch testing across high-volume categories (vitamins, protein, creatine).
Clinical re-evaluation led by Dr Blen Tesfu and Dr Zeeshan Afzal.
Data integrity checks supervised by Thomas Daniel, Head of QA & Analytics.
Suppliers failing to maintain standards are subject to immediate suspension pending re-inspection.
Why Certification & Clinical Oversight Matter
A 2024 report from the Office for Health Improvement and Disparities found that over 25 % of online supplement products were either mislabelled or substandard when not third-party tested.
By contrast, Expert Verified™ partners benefit from:
Scientific credibility validated by registered clinicians.
Legal compliance with MHRA, FSA and ISO standards.
Consumer trust through transparency and public documentation.
Supplier Benefits
Participation in the Welzo Expert Verified™ Program offers:
The Welzo Expert Verified™ Seal is displayed on product listings.
Visibility within the Welzo Supplements Marketplace, visited by 500,000 + UK users monthly.
Access to medical consultation from our in-house doctors for formulation refinement.
Eligibility for inclusion in Welzo’s clinical research partnerships.
Learn more about our organisational values on the
About Us Page.
Frequently Asked Questions
Who can apply?
UK or international supplement manufacturers with valid GMP/ISO certification and full product traceability.
How often are audits conducted?
Every six months, with additional randomised compliance checks.
Who reviews applications?
Applications are reviewed by the Welzo Clinical Board, chaired by Dr Sameer Nakedar and supported by Welzo’s pharmacology and QA teams.
References
MHRA – Medicines and Healthcare products Regulatory Agency
ISO 9001 Quality Management System
ISO 22000 Food Safety Management
FDA – Food and Drug Administration
Trusted. Tested. Expert Verified™.
Welzo is a UK-registered healthcare platform headquartered in London (19-21 Crawford Street, W1H 1PJ) with a 4.8 / 5 Trustindex rating from more than 15,000 verified reviews.
Our commitment to clinical integrity, independent testing and transparent governance is what makes the Welzo Expert Verified™ Program the benchmark for supplement quality assurance in the UK.
For more details on Welzo's Expertise
Accessibility & Inclusivity Statement
Careers at Welzo
Corporate Social Responsibility Policy
Editorial Policy
Ingredients Quality and Purity
Medical Disclaimer
Medical Review Board
Meet the Experts
Urgent Care Services
Welzo Locations
Welzo Press Page
Welzo Regulations & Compliance Commitment
Why Trust Welzo
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