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527 Results

Section: Testing

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A New Intersection: Could Anti-pollution Mean Anti-acne?

Anti-acne and anti-pollution have something in common: inflammation. Could this crossroads of two market segments align to forge a new path forward? A recent study suggests so.

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Zombie Hair and Insights from the Living-dead Connection

"How can we create a synergy between the living and dead part of hair to give consumers the best results? We manipulate the living to improve the dead,” said Thomas Dawson, Jr., Ph.D., during the TRI-Princeton 8th International Conference on Applied Hair Science.

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PCPC Responds to Breast Cancer Action's Ingredient Safety Allegations

The Personal Care Products Council has taken issue with the Breast Cancer Action’s latest statement alleging products offered to women in philanthropic cosmetic kits dispensed by the PCPC contain chemicals linked to increased cancer risk.

*Depiction only; not an actual image from Kao Corp.

Kao Dually Visualizes Vessels, Capillaries in Deep Skin Tissue

An imaging technique based on an automatic visual extraction technology has been developed by Kao Corp to simultaneously collect capillary and blood vessel information. This will further skin care research.

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Kao's Fine Fibers Impart Moisture, Activate Proteins in Skin

A specialized polymer solution is sprayed through a small-sized applicator nozzle, which forms the membrane. It is not only light and soft, but also demonstrates a high capillary force.

In vivo Quantification of Corneocyte Lipids by Image Analysis

In a new method described here by the authors, fluorescence emitted from samples and captured by image analysis is used to quantify the number of lipids present in the cornified cell envelope. This in vivo approach is fast and noninvasive and could be used to screen molecules for potential moisturizing and restructuring effects.

Tape Stripping Method in Humans: Comparison of Evaporimetric Methods

The current preliminary study compared the sensitivity and correlation of open chamber device and closed chamber device on a tape stripping human model. The amount of SC removed by tape stripping was also quantified with a protein assay method.

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SPF Tests Reveal No Ideal In vitro Substrate Exists

In vitro SPF measurements are challenged by reproducibility, repeatability and correlation with in vivo values. Here, the authors assess sunscreen adhesion to the test substrate support, since poor adhesion produces bad results. Surface substrates are characterized by functional group, charge, wettability and surface morphology. Eight w/o and o/w emulsions also are tested. Results indicate an ideal in vitro test substrate does not exist.

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In Light of Exposure: Understanding Avobenzone Part I, Characterization

Avobenzone is a widely used UV-absorbing organic filter. Its dynamic nature and photophysical and photochemical properties are responsible for its widespread use. This first in a two-part series reviews its inherent characteristics and behavior in solvents; part two will consider its behavior with other sunscreens and in formulas.

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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.

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Eurosafe Inks Deal to Distribute Senzagen's Animal-alternative Tests

"The GARD assay portfolio is unique with its holistic approach and contributes greatly in a modern, [animal-free] testing strategy."

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Method to Reproduce In vitro Cosmetic Product Photostability Findings

The present article describes a reproducible method for determining the photostability of sunscreen products. This method is based in part on the in vitro determination of the UVA protection factor as proposed by Colipa for the irradiation aspect, and on the spectroscopy of a sunscreen in dilute solution for the absorbance measurement aspect.

A Synthetic Tissue-based In vitro Ocular Irritation Assay

The testing of personal care products for ocular irritancy ensures their safety, proper labeling and consumer satisfaction. In relation, there is a current demand for animal-alternative tests. Thus, described here is a method using synthetic tissue to test for mild, moderate and severe ocular irritation, including data validating this method as an effective means to screen products.

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Genemarkers and Genoskin to Explore CBD Effects in Skin

Working together will reportedly streamline procurement, reduce total time from proposal to report, and deliver industry-leading clinical grade-results.

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Your Hair on Acid: The Influence of Carboxylic Acids

Carboxylic acids are growing in use to alter hair's properties from the inside out. This column explores the efficacy of these materials and presents possible explanations for their effectiveness.

Large-scale Screenings of Botanical Ingredients: Challenges and Opportunities

Botanical ingredients are interesting for their unique and complementary chemical diversities yet they are criticized for these very traits, which make quality assurance, reproducibility and good phytochemical characterization—required for successful high throughput screening, difficult. This article discusses these challenges as well as the benefits of large-scale screenings of botanical extracts that are currently used or developed for cosmetic product development.

A Synthetic Tissue-based In vitro Ocular Irritation Assay

The testing of personal care products for ocular irritancy ensures their safety, proper labeling and consumer satisfaction. In relation, there is a current demand for animal-alternative tests. Thus, described here is a method using synthetic tissue to test for mild, moderate and severe ocular irritation, including data validating this method as an effective means to screen products.

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Lake Makes a Splash in Redditch with New Lab

In support of customers who formulate and develop products in the cosmetics market, Lake Personal Care has opened a new laboratory to help progress production.

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