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Type: Article

Section: Testing > Safety/Stability

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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.

Shaving And Its Effects On Percutaneous Absorption In The Skin

Shaving and its Effects on Percutaneous Absorption in the Skin*

Despite its being an area of concern for many years, the percutaneous absorption of cosmetics has not been rigorously studied. Additionally, the effects of shaving on this process are relatively unknown. An overview of recent research reveals that more research in this area is required.

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Confounding Labels: One ‘Natural’ = 100+ ‘Chemicals’

As most formulators are aware, creating a product with three or more botanicals in it means a final formula containing more than 200 chemicals. How is this better for skin? It's not, according to this commentary.

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Why the FDA's 'Sunscreens in the Bloodstream' Study is Flawed

A recent study published in the Journal of the American Medical Association tested the potential systemic absorption of certain sunscreens. Results identified their presence in subjects' bloodstreams; however, as industry expert David Steinberg explains, the study is misleading and fails to consider crucial variables.

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When the Dust Settles: Keratinocyte Differentiation is the Anti-pollution Solution

This article describes in vitro, ex vivo and in vivo models to examine the effects of PM in skin, with particular interest in a botanical extract to mitigate the described effects. Urban pollution including particulate matter (PM) can affect the skin barrier by inducing numerous cell stresses.

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Getting the Breakdown: Testing the Biodegradation and Styling Performance of Polyurethane Film Formers

Personal care products end their life cycles in water, where poor biodegradability can be concerning. This study compares the biodegradability and hair-styling performance of polyurethane, polyacrylates and polyvinylpyrrolidone film formers.

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Photostability Leads the Way: Formulating Safer Sunscreens

The need to prevent skin from UV damage is well-understood but the most effective way to achieve this is not. Here, a novel photostabilizer is presented in a test pump sunscreen spray formula as part of a total photoprotection strategy.

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10 Aspects of Cosmetics Data Mandated by the EU

Product safety: It's crucial. That's why European Regulation (EC) No. 1223/2009 requires the following 10 aspects of cosmetic product data to be provided in order to support a proper safety assessment.

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3 Skin Sensitization Tests to Meet the EU Mandate

The EU Cosmetics Regulation requires skin sensitization to be determined through non-animal methods. Here, the pathways for skin sensitization are reviewed, three non-animal tests are described in brief, and their combination with one another, followed by human assessment, are explored.

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Here Comes the Sun Protection: ISO Test Methods

Our knowledge of the sun and its effects on skin has increased over the years, including the damaging effects of UVA and UVB light. Testing methods for UVA and UVB rays differ; the following is a review of the testing protocols of the European Union and United Kingdom. (Click through to the Digital Edition)

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Testing the Fate (and Exposure) of Cosmetic Ingredients

Risk and exposure go hand-in-hand. So when researchers dared to publish a new method to assess the exposure and fate of cosmetic ingredients, we couldn't help but give them exposure, in this review.

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Lab Lessons—Wise Words from the Bench with Mark Chandler

Cosmetics & Toiletries presents “Lab Lessons,” featuring interviews with veteran members of the personal care industry to share practical advice from the lessons they have learned.

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Cosmetovigilance and Safety Assessment in the World of Active Ingredients

It can be deduced from today's scientific literature that countless ingredients have been developed with the intent to alter the structure and function of human skin. This raises important questions in terms of how these products should be regulated and what types of safety standards they should be held to.

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How Damaged is Hair? Part III: Better Defining the Problem

By identifying elements at the heart of technical issues in hair, product developers will uncover options to consider for improving its health and appearance. Completing our three-part series, this final piece on hair damage provides insight on new ideas and strategies for problematic hair.

For multifunctional products such as moisturizing hand sanitizers, the sanitizer claim requires a significant reduction (2-3 log) of a microorganism population while the moisturizer claim requires data showing an increase in skin moisture.

Testing the Safety and Efficacy of Multifunctional Personal Care Products, A Primer

Multifunctional products may offer solutions to consumer challenges but as the needs of consumers grow more complex, so do their safety and efficacy testing. This article provides a primer on these considerations.

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