Microbiological Test
Microbiological Testing verifies that your cosmetic product complies with EU Cosmetic Regulation (EC) No 1223/2009 by…
€ 75.00
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Required for the PIF
Cosmetics
ISO 11930:2019
Microbiological safety
Preservative Efficacy (Challenge) Test
The Preservative Efficacy (Challenge) Test verifies that your formulation’s preservative system controls microbial growth across its shelf life and use — tested to ISO 11930:2019 and required to support your CPSR and Product Information File.
€ 180.00
Performed to ISO 11930:2019 in EU-recognised accredited labs.
Challenges the product with bacteria, yeasts and molds.
Required microbiological evidence for the PIF and CPSR.
ISO 11930:2019
Internationally recognised challenge method.
Accredited labs
EU-recognised laboratories and protocols.
PIF & CPSR ready
Supplies the microbiological evidence required.
Transparent pricing
€180 per product — published upfront.
What the Challenge Test proves
The Preservative Efficacy Test (PET), or Challenge Test, is a key requirement in cosmetic safety assessment under Regulation (EC) No 1223/2009. It verifies that the preservatives in your formulation effectively control microbial contamination during the product’s shelf life and use — protecting consumer health where products meet microorganisms in manufacturing, storage, transport and consumer use.
Regulatory importance
EU rules require evidence of microbiological safety for all cosmetics. Challenge Test results must appear in the Product Information File (PIF) and support the CPSR. Without sufficient preservative-efficacy data, products risk non-compliance, delayed market entry or regulatory action.
Methodology
We test to ISO 11930:2019 and other international standards: inoculating your product with specific strains of bacteria, yeasts and molds, monitoring microbial reduction over defined intervals, and assessing whether your preservative system meets the EU acceptance criteria — in fully accredited, EU-recognised laboratories.
It deliberately introduces microorganisms (bacteria, yeasts and molds) into your product and measures whether the preservative system reduces them to safe levels over time, confirming microbiological safety to ISO 11930:2019.
Evidence of microbiological safety is required for the PIF and CPSR. The Challenge Test is the standard way to demonstrate preservative efficacy, unless your product qualifies for a challenge-test exemption.
ISO 11930:2019, the internationally recognised method for evaluating the preservation of cosmetic products.
Product samples and formulation details. Our team guides you on sample selection, packaging and the documentation needed for PIF inclusion.
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Preservative Efficacy (Challenge) Test
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View the Essential Safety Set →
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