Inolex has been granted a European patent related to a preservation platform for paraben-free multifunctional cosmetic formulations.
The European patent EP3075401B1 covers a preservation platform for formulations that require Caprylhydroxamic Acid and a vicinal diol, as well as methods of using the compositions to protect against microbiological growth.
When designing preservation systems with Caprylhydroxamic Acid (CHA), pairing it with a vicinal diol, commonly referred to as a Medium Chain Terminal Diol (MCTD), is critical for effective product protection.
A variety of MCTDs can be used to accomplish effective preservation when combined with CHA, including Caprylyl Glycol, Glyceryl Caprylate, and Caprylyl Glyceryl Ether.
This combination of materials and the resulting effective preservation of cosmetic products is described in Inolex’s newly granted patent.
The optimized combinations are the foundation of Inolex’s broad spectrum preservation systems offered under the Spectrastat tradename.
“Inolex’s safe preservation technology combines multiple techniques to create an environment that is inhospitable to microbial growth, known as the hurdle technology approach,” said Michael J. Fevola, PhD, VP R&D at Inolex.
“Hurdle technology is an intelligent combination of different preservation factors or techniques to achieve broad spectrum and reliable preservation effects,” he added.
In a related development, Inolex has launched Spectrastat CHA, a 100% natural, non-palm derived chelating agent in powder form, to its line of Spectrastat preservation products.
“Combining Spectrastat CHA with an MCTD creates a highly effective hurdle technology ingredient combination that provides broad spectrum microbial growth protection over a wide pH range in cosmetic formulations,” the company said.
