Do you know the difference between challenge testing and microbial count testing?

Many formulators do not realise these tests answer completely different safety questions. One tells you if your product is safe right now. The other proves it will stay safe after it has been opened and exposed to contamination.

I have created a detailed, easy-to-follow guide that explains both tests, when to use them, how they are done, and the regulatory requirements you need to meet. It also includes real examples, troubleshooting tips and best practices to keep your products safe and compliant.

Available now on my Patreon in the Formulation and Regulatory Essentials tier and the Formulator’s Hub tier.