Cosmetics tests is constantly evolving, and with it, the importance of products that have laboratory-confirmed efficacy and safety is growing. September in our cosmetology laboratory is a month full of news and important events – both for cosmetics manufacturers and for anyone who wants to develop their portfolio in accordance with the highest standards. Check out what’s new and how we can support you in the cosmetics testing process.
HOW TO PREPARE DOCUMENTS FOR COSMETIC PRODUCT TESTING?
In order to begin application, stability, or microbiological testing without unnecessary delays, it is important to prepare the documentation properly. Depending on the type of order, different sets of documents are required. Remember, the sooner you provide a complete set of information, the sooner we can begin testing your cosmetic product.
| Dermatological Testing | Application & Instrumental Testing | UV Testing |
*Not required for products with low microbiological risk. |
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PROFICIENCY TESTING AND “EXCELLENT PERFORMANCE” RESULT
Our Cosmetics Microbiology Laboratory in Tychy took part in proficiency testing for the preservation test (Challenge test), organized by the German company DRRR – an international leader in this field.
We are proud to announce that we have achieved an “Excellent Performance” result, the highest rating confirming our competence.
For our customers, this is a guarantee that the preservation tests we perform are carried out in accordance with the highest quality standards and with complete reliability.
PAO – PERIOD AFTER OPENING. WHAT DOES IT MEAN AND WHY IS IT IMPORTANT?
Cosmetic packaging often features a symbol of an open jar with a label, e.g., 6M, 12M, 24M. This is PAO (Period After Opening), i.e., the shelf life of the product after opening.
Why is PAO testing crucial?
- It determines how long a cosmetic product is safe to use.
- It indicates how long a product retains its properties after opening.
- It helps to avoid the risk of microorganism growth and deterioration of the formulation.
We conduct PAO testing based on physicochemical and microbiological stability tests under conditions that reflect everyday use.
It is worth remembering that cosmetics with a shelf life of more than 30 months do not need to have an expiry date – the PAO symbol is sufficient.
Would you like to check the shelf life of your product? Contact our expert by filling out the contact form or sending a message to: cosm@jsh.com.pl
CONFIRMATION OF MARKETING CLAIMS – IN VIVO TESTS
Claims such as “moisturizes the skin,” “reduces wrinkles,” or “restores radiance” require confirmation by reliable test results. In our laboratory, we conduct in vivo tests that provide a solid basis for marketing communication.
Why choose our laboratory?
- We conduct tests on appropriately selected groups of volunteers.
- We ensure the safety and comfort of participants.
- We use modern assessment methods in accordance with current standards.
Thanks to the results obtained, your marketing messages will be credible and competitive on the market.
Ask about our range of application and usability tests that support the positioning of cosmetic products.
LET’S MEET AT THE COSMETORIUM TRADE FAIR IN BARCELONA
On October 22-23, 2025, we will be present at the Cosmetorium trade fair in Barcelona – the most important event in the cosmetics industry in Spain. This is an excellent opportunity to discuss cooperation opportunities and learn how our cosmetics testing supports product development:
- we confirm marketing claims,
- we verify the safety of cosmetics,
- we evaluate the effectiveness of formulations.
If you are planning to launch a new product, please contact us and arrange a meeting during the fair. Anna Pawlus, our Account Manager, will be present at the fair – apawlus@jsh.com.pl.
September in our laboratory is a time full of events and important information for the cosmetics industry. Participation in the Cosmetorium trade fair, excellent proficiency test results, PAO tests, and in vivo studies—we do all this to support cosmetics manufacturers in creating safe and effective products.
If you are looking for a partner for cosmetic testing, contact us and find out how we can help you develop your brand.
If you have any questions or concerns, J.S. Hamilton’s experts are at your disposal.
Contact your account manager: cosm@jsh.com.pl