The microbiological safety of cosmetic products is not only a legal requirement, but also a responsibility of the manufacturer and a legal requirement. Especially in the case of products used in sensitive areas such as the skin, lips or eye area, the presence of pathogenic microorganisms can pose health risks. In this context, the ISO 18416 standard provides an internationally recognized method for detecting Candida albicans in cosmetic products.
What is ISO 18416?
ISO 18416 is a test method for the qualitative determination of the presence of the yeast fungus Candida albicans in cosmetic products, which can pose a risk to human health. This analysis is used to assess whether the product is safe from a microbiological point of view.
Why is Candida albicans being searched for?
- Candida albicans is an opportunistic pathogen that can cause skin infections.
- In moist and nutrient-rich cosmetic products, the risk of reproduction is high.
- It is particularly important to detect it in baby products, eye care products and personal care products.
- For reasons of product safety, brand image and legal regulations, the test is mandatory.
General steps of the test
Sample Preparation
- The cosmetic product is diluted accordingly.
- If necessary, neutralizing agents are added.
Enrichment phase
- The sample is placed in soy casein digest (SCD) broth or a suitable liquid culture medium.
- Incubated at 20–25 °C for 2–5 days.
Selective culture medium
- The enriched sample is placed on Sabouraud Dextrose Agar (SDA) or a suitable fungal culture medium.
- Colony development is observed for 2–5 days.
Identification and confirmation
- Typical Candida albicans colonies are white-cream in color.
- If necessary, confirmation is carried out by means of biochemical tests or rapid identification kits.
Result
- If no colony is visible, → "Candida albicans has not been detected".
- If a colony is present → the result is "Candida albicans positive".
In which products is it used?
- Skin care products (cream, lotion)
- Shampoo and shower gels
- Products for the eye area
- Lip Balm, Lipsticks
- Baby Cosmetics
- Hygienic cosmetic products
Importance of ISO 18416 Analysis
- It guarantees the microbiological quality of cosmetic products.
- It plays a crucial role in the safety assessment before a product is placed on the market.
- It increases consumer trust and brand equity.
We perform the ISO 18416 – Candida albicans test for cosmetic products in accordance with international standards. Thanks to our accredited laboratory infrastructure, we offer manufacturers, importers and brands a reliable and fast analysis service. This test is an important step for companies that want to ensure product safety in accordance with German and EU regulations. Contact us.