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266 Results

Section: Testing > Method/Process

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Kao Test Gets to the Bottom of Makeup Film Structures

Kao Corp. has developed a new test based on Raman spectroscopy to assess the internal film structure of makeup bases and determine their component distribution. An additional application explored sebum characterization in the films.

Hyaluronic Acid Butyric Esters for the Improvement of Skin Functionality

The versatility of hyaluronic acid is connected to not only its size, but also to inherent opportunities within the molecule for multiple bonds and for the differentiated release of bound functional molecules. Here, ester bonds are used to introduce substitutes for the material’s alcohol groups, thus providing elasticizing, moisturizing and antiaging benefits for skin care.

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Testing Tactics in Skin: Evaluating Radiance and Texture

Hydrated, even-toned skin with a natural glow, all indicators of health, has gained popularity in the last decade. This article explores the meaning of skin radiance, its relationship to texture and various ways to measure this desired attribute.

Three Decades of Patch Testing: Trends in the North American Populace

This report evaluates the trends in the results of patch testing. The patch test reactions were surveyed retrospectively. The results were statistically compared between 1970 and 2002 because appropriate interpretation of the numbers has public health opportunities.

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Good Vibrations: Spectroscopic Imaging to Visualize the Delivery of Actives

Understanding how actives are delivered is essential to product development and to provide scientific data in support of a product’s efficacy. Vibrational imaging spectroscopy is shown here to enable the visualization of the penetration of cosmetic actives into skin, hair and nails.

Hair Ethnicity and Ellipticity: A Preliminary Study

Ethnic hair care addresses diverse fiber compositions that require unique products. This comprehensive review in hair fiber dimensions among straight, wavy and curly/coily hair serves as a basis from which product developers can design products to cater to unique hair type needs. The current study examines the ellipticity of Caucasian, Brazilian, Hispanic and African-American hair.

CTFA Preservative Challenge and Stability Testing Survey

CTFA conducted a survey in 1999 to determine the consistency of the industry's procedures for preservative and stability testing used by the cosmetic industry.

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Destruction and Creation Harmonize at C&T Summit

“Analysis, synthesis, creation and destruction” was the secret recipe behind keynote speaker Jeffrey Baxter’s guide to unconventional thinking for problem-solving during the Cosmetics & Toiletries Summit.

CIDP Adds Japanese and Chinese Test Subjects

The testing company Centre International de Developpement Pharmaceutique (CIDP) announced it has added Chinese and Japanese panelists to its test panel options.

REACH and In Vitro Alternatives: Phototoxicity Testing

This is the third column in a continuing discussion regarding the new REACH regulations and their impact on chemical testing. The first appeared in December 2007 and discussed dermal corrosive potential testing; the second, in February 2008, covered dermal irritancy potential testing.

Hair Ethnicity and Ellipticity: A Preliminary Study

Ethnic hair care addresses diverse fiber compositions that require unique products. This comprehensive review in hair fiber dimensions among straight, wavy and curly/coily hair serves as a basis from which product developers can design products to cater to unique hair type needs. The current study examines the ellipticity of Caucasian, Brazilian, Hispanic and African-American hair.

The goal was to improve the sensitivity and consistency of analyses and inter-laboratory concurrence relevant to reporting asbestos and similar particles in talc that could potentially affect cosmetic product safety.

5 Key Facets of Talc Testing: FDA Paper Outlines Expert Consensus

The goal was to improve the sensitivity and consistency of analyses and inter-laboratory concurrence relevant to reporting asbestos and similar particles in talc that could potentially affect cosmetic product safety.

Torsional Behavior of Human Hair by Single Fiber Torsion Pendulum Method

Torsional properties are described by the author as a method to distinguish between the surface and the bulk effects of actives in hair formulations.

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[video] News and Insights from Cosmetics & Toiletries: 4/27/2018

Did you see last week's video from in-cosmetics in Amsterdam? We touched on a few trends but there was so much more. This week's recap gives additional insights and news in cosmetics R&D.

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[video] News and Insights from Cosmetics & Toiletries: 01/26/2018

We covered a lot of ground this week in cosmetics R&D. Can Rachel Grabenhofer recap it all in under 3 minutes? Watch our video to find out.

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[video] News and Insights from Cosmetics & Toiletries: 11/17/2017

Temperatures are cooling down, but news at Cosmetics & Toiletries is always hot! Click through and watch now for the latest industry news and insights.

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Learn More About Skin Derived Models and Services

BioreclamationIVT is a worldwide provider of biological specimens and in vitro products and services. Look to us for in vitro assay services and tissue-derived models for toxicity, skin disease, and other personal care R&D research.

Rheological Characterization of a Modified Taurate Acrylic Polymer for Skin Care

The rheology of a pre-neutralized, hydrophobically modified acrylic polymer was investigated by dynamic mechanical measurements using this methodological approach to establish its viscoelastic profile and stability in formulations. Properties of several polymer-containing emulsions were studied and their particle size distribution investigated by laser diffraction.

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