Preservation is a vital part of any personal care formulation. We require preservatives to protect our products from the effects of bacterial, yeast and fungal growth. Selecting the correct system to perform this task is not a simple process – many factors will need to be considered before the correct choice can be made.
The system must not only be robust enough to ensure that a finished product is sterile when first made, but also that it minimises risk of contamination right up to the expiry date.
In this paper, we will discuss the challenges faced by cosmetics chemists when evaluating preservation options. Regulatory pressures, consumer perception and the abundance of new and conflicting studies of varying degrees of scientific credibility make preservation selection increasingly complex. We will discuss recent trends, some of which are promising, while others, such as non-preservative alternatives, may actually pose greater risk. We will also explore the advantages of IPBC (iodopropynyl butylcarbamate) as a preservative, whether used as the sole active or as part of broad-spectrum blends, some of which offer unique benefits in the marketplace.
Personal care preservation background
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