Mérieux NutriSciences - Quality check

Quality control of cosmetic products is fundamental to ensure both safety and high performance of the formulations and raw materials in order to verify that these characteristics remain constant over time.

The microbiological cosmetic testing laboratories work to ensure purity and quality of products. The characterization and quantification of microorganisms in cosmetic products are performed both on finished and intermediate products and for the monitoring of production environments. Moreover, tests are also carried out to evaluate the efficacy of antimicrobial preservation agents.

Our range of microbiological analyses includes:

  • Challenge test
  • In-use test
  • Assessment of formulation stability and/or determination of the Period After Opening (PAO)
  • Microbiological tests and determination of aerobic mesophile bacteria, fungi and pathogens
  • Isolation, identification (sequencing and MALDI-TOF) and preservation of microorganisms
  • Process validation / Cleaning validation

Protocols abide by ISO methods and official recommendations issued by the main international regulatory bodies. 

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All our Tests and Services

 Full range of scientific tests to support your safety evaluations.

Clinical evaluations in order to demonstrate the efficacy of your product.

Wide range of chemical and physical analyses of cosmetic products in accordance with ICH guidelines.

Characterization and quantification of microorganisms in final cosmetic and personal care products, in intermediate products and for the control of manufacturing environments. We conduct tests to assess the efficiency of antimicrobial preservation agents, as well as sterility and bioburden tests.

To ensure that your products meet quality standards when stored under proper conditions, a safety and stability assessment is required. Mérieux NutriSciences provides a full complement of customizable analytical methods in order to respond to customer requirements on a case-by-case basis. 

OTC (over-the-counter) medicines are safe and effective drugs used by the general public without prior recourse to a healthcare professional. OTCs must be manufactured and controlled in accordance with cGMP requirements for pharmaceuticals for human consumption. 

Mérieux NutriSciences can help with cGMP compliance in relation to the following:

  • Method development and validation
  • Quality control
  • Stability testing

Human skin is a complex ecosystem with various micro-environmental conditions and skin microbial communities, and it is the home to millions of bacteria, fungi and viruses which compose the skin microbiota.
Skin microbiota is extremely important to the skin health and it plays an essential role in skin protection against external infectious or toxic substances.

Discover more about our services for the Skin Microbiome


Thanks to its attention to these issues, Mérieux NutriSciences is able to offer a service dedicated to the cosmetic industry: it does not only concern the finished product, but also the packaging.

Consumer’s satisfaction and the “Wow effect”

One of the fundamental ingredients to make a product successful is customer’s satisfaction; however, how can their needs be anticipated? Sensory analysis and market research are a sound support in this field.