Recent in Preservatives (page 4 of 6)
Jun 1, 2011
This article investigates the ability of Zemea (INCI: Propanediol) to boost preservative efficacy in an aqueous personal care formulation. This 100% bio-based propanediol is a colorless, pure glycol alternative derived from a sustainable, renewable corn fermentation process. The testing was conducted using standardized microbiology guidelines, known as preservative efficacy testing or challenge tests.
May 2, 2011 | Peter Tsolis and Steve Schnittger, The Estée Lauder Companies
Cosmetics & Toiletries magazine is pleased to add this new “Formula Troubleshooting” column to the regular lineup. Led by column editor Peter Tsolis of The Estée Lauder Companies, it will cover some of the more common formulation challenges and suggest solutions for the benefit of novice formulators and as a refresher for seasoned experts.
Mar 16, 2011 | Anthony J. O'Lenick, Jr., Siltech LLC
In the present "Comparatively Seaking" column, industry expert Anthony J. O'Lenick explains the difference between toxicity and selective toxicity in regard to preserving a personal care formula while also keeping the consumer safe.
Jan 4, 2011 | David Steinberg, Steinberg & Associates
Important to understanding preservation in cosmetics and personal care is the discussion of water activity, as was discussed last week in Tony O'Lenick's "Comparatively Speaking" column. The present column takes this concept a step further with expert David Steinberg's explanation of how to use water activity for effective preservation.
Dec 29, 2010 | Anthony J. O'Lenick, Jr., Siltech LLC
In this edition of "Comparatively Speaking," Tony O'Lenick explains the different between water content and water activity, since understanding water activity can lead the formulator to more effective product preservation and better product stability.
Nov 1, 2010 | David C. Steinberg, Steinberg & Associates
This article reports the frequency with which preservatives are used in personal care in both the United States and Canada. Surprisingly, the use of parabens continues to grow while imidazolidinyl urea, quaternium-15 and triclosan are on the decline. The fact that the FDA’s voluntary registration program is poorly supported plays into the hands of NGOs.
Oct 15, 2010
Sabinsa has introduced two natural preservatives that also serve as antioxidants and prevent the oxidation of oils and fats in personal care formulations.
Sep 15, 2010
A system based on phenoxyethanol and ethylhexylglycerin (euxyl® PE 9010) from Schülke & Mayr is described here to boost the efficacy of preservatives. To substantiate its efficacy, the effects of the system were checked at pH levels of both 7.0 and 5.0.
Sep 14, 2010
Univar and the Professional Compounding Centers of America (PCCA) introduced a natural preservative solution that protects personal care products against Gram-positive and Gram-negative bacteria without altering the formulation's odor or color.
Apr 27, 2010
Dow Microbial Control, a business group of The Dow Chemical Company, has developed an oil and water-soluble phenoxyethanol that provides preservation across a broad range of bacteria, fungi and yeast.
Apr 20, 2010 | Anthony J. O'Lenick, Jr., Siltech, LLC
To serve the novice cosmetic chemist and/or refresh the seasoned formulator, Tony O’Lenick asks Perry Romanowski: Why is cosmetic preservation necessary, and why are preservatives vilified?
Feb 26, 2010 | Rachel Grabenhofer, Cosmetics & Toiletries magazine
Efforts toward preservation are more than a trend, they are an essential component of the inner workings of our industry. Consider how much of the world has recognized this and joined in adopting sustainable and eco-friendly practices and it becomes obvious. In the words of writer Samuel Butler, “Self-preservation is the first law of nature,”