Validating rapid micro methods
For this reason an effective preservative system is usually essential.
New ‘green’ products may be more susceptible to microbial growth and spoilage and are likely to require additional monitoring and testing.
Despite the differences, the requirements for microbiological testing of home care products are much the same as those for cosmetics listed above.
Once again a risk analysis approach may help to determine the type and frequency of testing, but unlike cosmetics there is no standard method for conducting the analysis.
Home care products also differ from cosmetics in that, as far as we are aware, there are no international standard methods for microbiological testing.
This can result in reformulation, reduced product life and increased risk of contamination.