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Type: Article

Section: Testing > Safety/Stability

'[Sunscreen] developers will be able to innovate more efficiently while maintaining high standards of quality and safety for consumers.'

[update] How ISO's Endorsement of Two Test Methods Will Enlighten Sunscreen Development

After 10 years, sunscreen developers are nearing the finish line for more ethical, cost efficient, reliable and faster testing thanks to ISO's endorsement of two standards. The final vote was in September 2024. Here, two experts explain what this means.

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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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Standardizing Safety: ISO Validation and Sun Protection Tests

In addition, methods under review pertaining to sun protection are discussed. The ISO sets proposed standards and test methods for nearly every industry; its validation process is described here.

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Is it Toxic? EU Mandate, Part 10: Safety

For each cosmetic product placed on the EU market, a safety evaluation must be performed. This includes a review of the toxicological profile of its ingredients, with a particular focus on genotoxicity. This mandate is described here.

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Understanding Fragrance Allergy, Is Fragrance-free Always Necessary?

This article reviews studies to diagnose allergic contact dermatitis due to fragrance, including a patch test designed to measure such. Limitations of patch testing, the relevance of fragrance concentration in products, use testing of common consumer products, and dermatologist recommendations to manage fragrance contact allergy also are discussed.

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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.

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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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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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Toxicological Evaluation of Cosmetics: A Primer

A cosmetic toxicologist can provide a clear-eyed view of the potential hazards and quantifiable risks of a product based on its composition. This primer briefly explains how.

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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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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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A Tale of Tattoos, Toxicology and Black Henna

Ingredient safety and skin reactions relate not only to companies producing the pigments and inks used for tattooing, but also skin care product manufacturers in general—after all, I apply sunscreen and moisturizer to my tattooed skin.

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Efficacy vs. Risk: A Contemporary Review of Sunscreen Filters

Being protected from sunlight would seem essential to preventing DNA damage that leads to skin cancers; however, the sunscreen filters used pose some risks of their own. This brief review highlights the safety vs. risk of sunscreen filters and approaches to improving their efficacy.

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Replacing Microplastics: Natural Cellulose Offers Gentle and Biodegradable Exfoliation

While cosmetics represent a small source of primary and secondary microplastics in the environment, it is a source that could easily be avoided by using natural biodegradable alternatives. As such, described herein is a research project to identify a natural, biodegradable alternative for peel applications. Plant cellulose was of particular interest.

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In Light of Exposure: Understanding Avobenzone Part II, Application

Avobenzone is a widely used organic UV filter. Its dynamic nature and unique properties are responsible for its widespread use and forms. This second in a two-part series considers avobenzone’s behavior with other sunscreens and in formulas; part one reviewed its characteristics and behavior in solvents.

IFSCC 2014 Explores Social, Psychological and Sensorial Aspects of Beauty

As one might expect from an event centered around beauty and staged in Paris, the 28th Congress of the International Societies of Cosmetic Chemists (IFSCC) was nothing less than fabulous. However, the glamour and fanfare was deeply rooted in science.

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Highs and Lows of Skin Adherence: Simplifying Skin Substantivity, Part I*

The first in a series, this column reviews the role of substantivity in skin care, which allows penetrants to remain on skin. A case study on the potential dangers of substantivity's effects, when combined with certain ingredients, also is examined.

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