The suitability of cosmetic products for human health not only depends on the list of ingredients, but also directly on your microbiological safety. Especially during manufacture and storage, products can be contaminated by harmful microorganisms, which can lead to various health problems. For this reason, the count of aerobic mesophilic bacteria must be carried out in cosmetic products according to internationally recognized standards. The ISO 21149 standard is the most common reference document in this area.
What is ISO 21149?
ISO 21149 is an international standard for the microbiological analysis of cosmetic products that defines the methods for counting and determining aerobic mesophilic bacteria. This standard is recognized worldwide to assess the microbiological safety of cosmetic products.
What are aerobic mesophilic bacteria?
Aerobic mesophilic bacteria are types of bacteria that can grow in the presence of oxygen and mostly at medium temperatures (20-45 °C) and are widespread in the environment. Some species of these bacteria reproduce in cosmetic products and can
- affect the product structure
- Cause skin irritation or infection
- affect the effectiveness and durability of the product
Therefore, microbiological controls are essential before, during and after production.
Why is bacteria counting done in cosmetic products?
To ensure the microbiological safety of supplemental products
- protecting consumer health
- to ensure product stability and durability
- Compliance with international regulations and quality standards
- Avoidance of product recalls and reputational loss
This is of great importance.
For which products is this mandatory?
According to the ISO 21149 standard, the count of aerobic mesophilic bacteria is carried out in the following product groups in particular:
- Skin care creams
- Shampoos, Shower Gels and Soaps
- Make-up products
- Products for the eye area
- Baby care products
- Other topical cosmetic products
The implementation of this test is particularly important for products for sensitive skin areas.
Standard microbiological safety tests are essential
In order for cosmetic products to be safely offered to the consumer, not only the recipe, but also the production hygiene and microbiological analyzes must be carefully monitored. The count of aerobic mesophilic bacteria according to ISO 21149 is one of the basic steps to ensure the microbiological safety of a product.
If you would like to have your cosmetic products tested microbiologically according to international standards, contact us.