ISO 22716 Explained for Buyers: What GMP Certification Actually Verifies

What ISO 22716 is — and what it isn't

ISO 22716 is the international Good Manufacturing Practice (GMP) standard specifically written for cosmetics. It covers personnel, premises, equipment, raw materials, production, quality control, waste management, subcontracting, deviations, complaints and recalls, and documentation. In plain terms: it's a framework for running a factory in a way that produces consistent, traceable, contamination-controlled batches.

What it is not: a stamp of ingredient safety, a product registration, or a guarantee that every SKU a factory makes meets a specific country's cosmetic regulation. ISO 22716 certifies the management system of the site, not the formula, the claims on your label, or the compliance of the finished product in your target market. A factory can be properly GMP-certified and still produce a formula or label that needs adjustment for your destination market — those are separate questions you still need to ask.

Why this standard matters when comparing factories

When you're scanning a Thai manufacturers directory or shortlisting candidates from a broader partner factory network, GMP status is one of the fastest ways to filter out operations that aren't set up for export-grade consistency. A site working to ISO 22716 should be able to show you documented procedures for batch records, in-process checks, retained samples, and non-conformance handling — not just a certificate number.

For brand owners doing global sourcing across multiple countries, this matters more than it might at a domestic level: you're often not physically present to inspect each production run, so the documentation trail that ISO 22716 requires becomes your main window into what actually happened on the line.

How to verify the certificate is real and current

Don't stop at a PDF with a logo. A reasonable verification process includes:

• Ask for the certificate with issuer name, certificate number, scope, and expiry date — GMP certifications are typically valid for a defined period and require recertification.
• Confirm the scope matches what you're ordering. A certificate scoped to 'skincare creams and lotions' doesn't automatically cover aerosols, oral care, or a different product category the factory also makes.
• Ask which accredited certification body issued it, and whether you can contact them or check their public registry if one exists.
• Request to see (not necessarily keep) a sample batch record or deviation report during a facility visit or video audit — a factory confident in its system usually won't hesitate.
• Check whether the certificate covers the specific manufacturing site you'll be using, not a sister site or head office address.

Red flags during factory evaluation

A few patterns worth noting when you're vetting candidates:

• The factory can produce a certificate but can't explain basic ISO 22716 concepts (batch traceability, retained samples, deviation handling) in conversation.
• The certificate's listed scope doesn't match the products being quoted to you.
• No willingness to let a third party or your own QC contact verify the certification.
• Certification is years past its stated validity with no mention of renewal status.
• Everything about quality is described verbally, with no documented SOP or quality manual offered on request.

None of these are automatically disqualifying on their own, but they're reasons to ask more questions before moving to contracts and formula development.

Where ISO 22716 fits in your overall due diligence

GMP certification is one input, not the whole evaluation. A well-rounded due diligence process for Thai OEM/ODM factories typically also covers raw material sourcing and documentation, stability and compatibility testing for your specific formula, labeling and claims review for your destination market, minimum packaging and artwork standards, and contract terms around quality disputes and remakes. Treat ISO 22716 as confirmation that the site has a functioning quality system — then layer on product-specific checks relevant to your category and market.