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Standardized service

Cosmetic Packaging Compatibility Test

Evaluates the interaction between formula and packaging over the storage period — whether the packaging deforms or leaks and whether the formula is affected by packaging constituents — providing the basis for packaging selection and shelf-life setting.

PrerequisiteSamples filled in the intended packaging
TimelineMonths (accelerated)
DeliverablePackaging compatibility report
SchedulingOften run with the stability study
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What this service is

A packaging compatibility test stores filled finished products under accelerated and real-time conditions and examines interactions between formula and packaging material, including deformation, corrosion, leakage, sorption, and changes in formula indicators.

Compatibility data is usually arranged together with stability testing. It confirms that the packaging choice is sound and that shelf-life data is credible, and it is common supporting material in a safety substantiation file.

MoCRA (2022)FD&C Act §608

Who needs it

Cosmetic companies validating a new packaging choice against the formula
Products re-confirming compatibility after a packaging supplier or material change
Formulas rich in oils, solvents, or other ingredients prone to interact with plastic packaging

Prerequisites and sequence

  • Provide finished-product samples filled in the intended packaging.
  • Compatibility evaluation often shares a protocol with stability testing; coordinate both before testing starts.

Who holds regulatory responsibility

Packaging selection rests with the manufacturer. We coordinate the laboratory study and report; packaging procurement and substitution decisions remain with you.

Materials we need from you

Sufficient finished-product samples filled in the intended packaging
Packaging material and supplier specifications
Brief description of the complete formula
Target storage conditions and shelf-life assumptions

Process

  1. 01

    Define the study design based on formula characteristics and packaging material

  2. 02

    Place samples under accelerated and real-time conditions

  3. 03

    Inspect packaging appearance, seal integrity, and formula indicators at each time point

  4. 04

    Aggregate data and evaluate compatibility

  5. 05

    Issue the report with a packaging-fit conclusion

Deliverables

Packaging compatibility test report
Packaging-fit conclusion and recommendations

Timeline

The evaluation follows the rhythm of a stability study: accelerated conditions typically take several months, and the overall schedule follows the confirmed protocol.

Scope

What we provide

  • Study design recommendations
  • Laboratory coordination and progress tracking
  • Report delivery and result interpretation

What is not included

  • Packaging re-selection or supplier development
  • Retesting after an incompatibility finding
  • International sample shipping costs

Common pitfalls

Reusing old conclusions after a packaging changeOnce the packaging material or supplier changes, previous compatibility conclusions no longer apply. Re-evaluate after any change, or your shelf-life data loses its foundation.
Submitting samples in the wrong containerCompatibility examines the interaction between the formula and a specific packaging material. Samples must be filled in the intended packaging; testing in another container produces no valid conclusion.
Confusing compatibility with stability testingThe two usually share one storage protocol, but stability tracks formula indicators over time while compatibility focuses on formula-packaging interactions. Running only stability can miss leakage, sorption, or deformation issues.

Pricing

Pricing depends on your product, quantity, and target market. Submit your product details and we will come back with a defined scope and quote.

Request a quote

FAQ

When is a packaging compatibility test a must?

When a new formula goes into new packaging, when the packaging material or supplier changes, or when the formula adds high levels of oils or alcohols — all are good triggers.

Is this the same as stability testing?

No, but the two usually share one storage protocol: stability tracks formula indicators over time, while compatibility focuses on interactions between formula and packaging.

What if the test finds incompatibility?

Depending on the issue (leakage, sorption, deformation, etc.), the packaging material or the formula must change, followed by a new evaluation. Selection and remediation are outside this service.

Related services

Stability TestAccelerated and real-time conditions track changes in appearance, physicochemical, and microbiological indicators over the shelf life, providing the data basis for shelf-life setting, packaging selection, and safety substantiation.Packaging Heavy Metals TestTesting of packaging materials for lead, cadmium, mercury, and hexavalent chromium against the limits in U.S. state toxics-in-packaging laws, so non-compliant packaging does not block your launch.Preservative Challenge TestStandard organisms are inoculated into the sample and surviving counts are measured at set intervals to verify that the preservative system keeps microbial growth in check over the product's life. Commonly run to USP <51> or ISO 11930, with a report from a partner laboratory.

Disclaimer

Testing is performed by a third-party laboratory; report conclusions apply only to the submitted samples and test conditions. This page is general information.