Optimizing Formula Preservation

By: Eric S. Abrutyn, TPC2 Advisors Ltd.

Posted: February 26, 2010, from the March 2010 issue of Cosmetics & Toiletries.

page 7 of 7

Much has been published about preservatives but the industry continues to run into issues with their formulation. The guidelines presented here are intended to assist formulators in minimizing potential issues. It is important for the formulating chemist to understand raw materials, why and when to use preservatives, and water activity for rapid screening of a formula’s robustness. In addition, it is crucial to remain diligent when transferring the formulation to the development engineer and processing plant.

Acknowledgements: The author wishes to extend a special thanks to John Garruto of Free Radical Technology and Susan Lindstrom of ISP Corporation for their support with this column.

Reproduction of the article without expressed consent is strictly prohibited.

References
Send e-mail to tpc2advisors@yahoo.com.  
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