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Type: Article

Section: Cosmetic Ingredients > Preservation

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An Offensive Defense: Minimizing Preservatives, Maximizing Protection and Resources

Designing formulations with maximum preservation efficacy using minimum preservative quantities is vital for several reasons, outlined here. This strategy is referred to as an “offensive defense,” and requires leveraging the right preservatives and levels for given formulation designs.

Assessing the Safety of Parabens: Percutaneous Penetration and Risk Analysis

In cosmetics, parabens are widely used due to their low cost and efficacy. In recent years, however, some reports have claimed that these materials exhibit estrogenic activity, which has led to attempts to replace them in formulations. This article reviews penetration studies of parabens spanning the past 20 years to determine whether they pose a risk to human health.

Assessing the Safety of Parabens: Percutaneous Penetration and Risk Analysis

In cosmetics, parabens are widely used due to their low cost and efficacy. In recent years, however, some reports have claimed that these materials exhibit estrogenic activity, which has led to attempts to replace them in formulations. This article reviews penetration studies of parabens spanning the past 20 years to determine whether they pose a risk to human health.

Preservative Efficacy Testing of Aqueous Cosmetics and Drugs without Counting Colonies

A miniaturized system using broth enrichment followed by either streaking on agar or fluorescence treatments can eliminate colony counting in the linear regression method of preservative efficacy testing.

Frequency of Use of Preservatives 2003

The importance of participating in the FDA’s Voluntary Registration of Cosmetics Formulations program is reviewed, and that program’s data on the frequency of use of preservatives is presented.

Frequency of use of Preservatives 2001

From data collected in the FDA's Voluntary Registration of Cosmetics Formulations program, the author reports on the preservative most frequently used in cosmetics sold in the United States in 2001 and 1996.

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Influence of pH on the Preservative Boosting Effect of Chelating Agents

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.

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Influence of pH on the Preservative Boosting Effect of Chelating Agents

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.

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Preserving the Facts on Parabens: An Overview of These Important Tools of the Trade

Parabens have a long history as effective preservatives in foods, cosmetics and drugs, with extensively documented human and environmental safety profiles. This article reviews these important ingredients.

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Clean and Simple: Cyclic Glucamide as a Natural Solubilizer and Preservative Booster

Clear products are associated with purity and align with today’s continued consumer demand for “clean” beauty. Here, a naturally derived cyclic glucamide is shown to solubilize lipophilic ingredients and boost preservation in clear systems.

Preservation of Sunscreen Products

Sunscreen products, even those formulated as anhydrous or powder formulations, may need preservative systems because of the high risk of microbial contamination or water intrusion, especially during consumer use around water.

2010 Frequency of Preservative Use

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.

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A Sense of Natural Protection

SharoSENSE™ Plus 181-N answers the need for green and effective preservative systems. It offers a natural, water-soluble solution with uncompromised antimicrobial efficacy at reduced use levels.

Preservation of "Atypical" Cosmetic Product Systems

The authors examine the facts that determine how to preserve and/or assess susceptibility/risk probabilities for cosmetic product systems that are "atypical" because they contain little or no water.

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Frequency of Preservative Use Update Through 2014

It has been four years since this author last reviewed the preservatives being used in U.S. and Canadian cosmetics. Since then, continuing attacks on preservatives, MIT, triclosan and others have kept formulators scrambling. This report discusses some of these attacks and compares numbers, to see what impact these attacks have had.

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Solving the Mystery of Natural Product Preservation

Personal care formulators are aware that “natural” products can be difficult to preserve, but they may not be aware of all of the underlying reasons. The experts at schülke have solved the mystery, using non-traditional preservative systems to preserve natural products. Find out how schülke can solve your Natural Product Preservation mystery

Parabens: Myth and Reality

This review offers an in-depth look at one of the most controversial scientific studies of recent years and explores the relevance of the results of this study and other selected studies to the current layman’s perception of the safety of parabens.

Parabens: Myth and Reality

This review offers an in-depth look at one of the most controversial scientific studies of recent years and explores the relevance of the results of this study and other selected studies to the current layman’s perception of the safety of parabens.

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