Dry skin areas such as arms or legs are dominated by
- C. tuberculostearicum
- P. acnes
- S. mitis
- S. oralis
- M. luteus
- M. globosa
For a better, Microbiome-friendly world!
The skin is divided into dry, moist and sebaceous zones.
Dry skin areas such as arms or legs are dominated by
Moist skin areas such as the navel, armpits or soles of the feet are mainly populated by
On sebaceous areas such as the forehead, nose or back a healthy, balanced skin microbiome is predominantly populated by
For this reason, different key germs are cultivated and exposed to the textile for the MyMicrobiome Standards 38.10 and 38.11, depending on the area of application of the textile product to be tested.
The textile product undergoes four test phases as part of the "Microbiome-friendly" certification.
All textiles are washed in our laboratory according to a standardized procedure and then steam sterilized (autoclaved).
Hygienic products will be sterilized by means of UV light.
The balance between the most common skin microbe S. epidermidis and the harmful bacterium S. aureus should not be disturbed by the textile product. A co-culture with both bacterial strains is mixed with the textile for a certain time and then the ratio of the two microbes is compared with the untreated control group. This must not change in favor of S. aureus under the influence of the textile product.
The microbes typical for the face and body are cultured for dry, moist or oily skin. A co-culture of all germs is mixed with the textile product to be tested and the change in diversity is compared with the untreated control group. The diversity of the skin microbiome must be preserved with regard to the most important key microbes.
A Microbiome-friendly textile for the face or body should not only preserve diversity, but also not influence the growth of microbes. In a test-model skin contact is simulated. Here, each key bacterium is directly exposed to the textile. In another approach, the bacteria are covered with an agar layer and the textile product to be tested is placed on this layer. This simulates the potential penetration of the product into deeper layers of the skin. The microbial growth of the two batches is compared to the untreated control group. The growth must not be significantly influenced.
"The skin microbiome plays an important role in human health, so it is essential that textiles, which are used by people on a daily basis, are also examined for the human skin microbiome. It is surprising that so little attention has been paid to textiles in relation to the microbiome, even though they have a direct influence on it."
Sarah de Visser, Textile Specialist
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