In order to determine the microbiological quality of cosmetic products, three basic analyzes are carried out: bacteria, mold and yeast counts. In cosmetic products, mold and yeasts are one of the factors affecting product quality and health of people using this product.

Although lip paints generally contain preservatives, as with all other cosmetic products, some lip paints have mold growth. This reproduction generally occurs after use with the moistening of the lipstick by inhalation.

Another cosmetic product, creams, spoilage also causes the most molds. An important reason for this is the containers where the cream is placed and the lids of these containers. Mold spores in the air adhere to the lid when the lid is opened, causing mold growth.

Similarly, contamination occurs in the cosmetic products in the tubes.

The fact is that these products are contaminated even once, making them unusable.

Another example is talc powders. Talc has a high degree of adsorbent properties and can contain contaminants and microorganisms around it. Therefore, mold content is very common in products containing talc.

In this way, cosmetic products containing mold increase the risk of skin infection in humans. Considering that such powders are used especially in infants, the magnitude of the risk is better understood.

In the accredited laboratories, various analysis methods are used to determine the number of molds and yeasts in cosmetic products. In these tests, the total number of molds and yeasts found in one milliliter or one gram of the cosmetic product is found. The standards considered in these studies are as follows:

• TS EN ISO 21149 Cosmetics - Microbiology - Detection and counting of aerobic mesophilic bacteria
• TS EN ISO 18415 Cosmetics - Microbiology - Searching for specific and non-specific microorganisms
• TS EN ISO 16212 Cosmetics - Microbiology - Yeast and mold count