Microbiological & physicochemical analysis
The purpose of microbiological surveys is to control contamination throughout the cosmetic manufacturing process, from the extraction of raw materials to the hygiene of production to the final product. These tests verify the level of microbial purity of cosmetic products, thereby confirming their safety within the limits specified in ISO 17516 Cosmetics - Microbiology - Microbial Limits.
Qualitative and quantitative testing
We perform qualitative tests, including quantitative tests to determine the presence of typical pathogens and the total number of microorganisms according to ISO standards:
- PN-EN ISO 22149 – Enumeration and detection of aerobic mesophilic bacteria
- PN-EN ISO 16212 – Enumeration of yeast and mould
- PN-EN ISO 22718 – Detection of Staphylococcus aureus
- PN-EN ISO 22717 – Detection of Pseudomonas aeruginosa
- PN-EN ISO 21150 – Detection of Escherichia coli
- PN-EN ISO 18416 – Detection of Candida albicans
THE CHALLENGE TESTS in accordance with:
- PN-EN ISO 11930
- Polish or European Pharmacopoeia
- Schülke&Mayr Koko- test
The methodology can be individually adapted to the requirements of - in particular, focused on strains obtained from raw materials or directly from the production environment.
Testing is performed to confirm or rule out antimicrobial properties of the product against test strains obtained from collections or recognized skin surface swabs from volunteers. The test is carried out on the basis of a procedure using the following method:
- suspension method (determining the degree of microbial reduction);
- disc method (marking the zone of growth inhibition).
The determination of the technological parameters of the mass, such as the density, the pH, the viscosity, the dry mass many others, is at the basis of the development of a technique. Moreover, it is a key element to check the cosmetic formulation.
Physicochemical testing is the basis for determining properties of cosmetics as well as stability/compatibility with various packaging conditions.
pH, density, viscosity, dry matter, chlorides, dry organic matter, preservatives i.a. parabens, phenoksyetanol, benzoic acis, sorbic acid content of allergens i.a. geraniol, eugenol, linalool content of heavy metals i.a. As, Cd, Pb, Hg, Cr, Ni, Sb and many others
- quality control of raw materials and consumables;
- comparison of the quality of competing products;
- development of new technologies;
- Marketing research;
- providing the appropriate sensory quality.
GBA POLSKA offers sensory analysis for:
- non-food products – cosmetics and household products
- drinking water