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Section: Testing > Method/Process

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[video] News and Insights from Cosmetics & Toiletries: 12/15/2017

Did you know: The skin remembers injury to help speed its recovery later? And the U.S. Food and Drug Administration holds "holographic" and other effect pigments to the same strict standards? If you missed this week's news, you missed out. Check out our video recap!

Study Suggests Link Between Citrus Consumption and Melanoma Risk

A recent study suggests a possible link between the consumption of citrus and an increased risk of malignant melanoma.

Terminalia Chebula for Preventive and Restorative Anti-aging Benefits*

This paper examines a tannin-enriched Terminalia chebula extract. Discussed are its mechanisms for preventative and restorative anti-aging effects, and skin pigmentation control. A pilot clinical study further confirms the extract’s bioactivity to reduce wrinkles and pigmentation. Improvements in yellowish skin tones also were observed, likely due to glycation reversal.

Woman Holding Her Hair Pulling Strength Test Adobe Stock 493393919

Correlating Porosity and Tensile Strength of Chemically Modified Hair

This study validates the porosity method against the widely accepted method of tensile strength for determining the hair damage imparted to hair due to cosmetic treatments.

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[video] News and Insights from Cosmetics & Toiletries: 11/10/2017

Cosmetics & Toiletries is back again with your weekly video update, featuring Rachel Grabenhofer, managing editor, with industry news and insights. Watch now!

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[video] News and Insight from Cosmetics & Toiletries: 8/25/2017

Here she is again, Rachel Grabenhofer, with news from Cosmetics & Toiletries—along with her product pick of the week and some reader insight. Watch now!

Dihydroavenanthramide D for Anti-irritant and Anti-itch

Naturally occurring and synthetic avenanthramides were evaluated for their efficacy to inhibit substance P-induced release of histamine from mast cells. In vivo tests showed that four synthetic avenanthramides demonstrated ability to significantly reduce histamine-induced itch and redness. Dihydroavenanthramide D was also shown to be an excellent antioxidant.

Testing for Dioxin and Furan Contamination in Triclosan

Each batch of triclosan should be analyzed for trace amounts of 2 3 7 8-tetrachlorodibenzo-p-dioxin and 2 3 7 8-tetrachlorodibenzofuran, which can form as unwanted manufacturing by-products, as shown in triclosan from six commercial Asian sources.

Assessing Beauty By Facial Topography, Color and Symmetry

The notion of “aging gracefully” no longer applies, as consumers are constantly judging each other’s facial features to assess their beauty. Here, based on recent studies, it is suggested that facial topography, symmetry and color dictate those assessments. While the cosmetics industry can lessen some of these factors, some are a result of biology or lifestyle.

ICCVAM Recommends Ocular Safety Tests for Cosmetics and Other Products

Four test method evaluation reports are now available from ICCVAM that provide recommendations for performing eye safety testing more humanely, and for developing and using non-animal test methods and strategies. Among these reports, ICVAAM has recommended that a cytosensor microphysiometer (CM) test method may be used to screen surfactant-containing formulations such as personal care products for the ability to cause permanent or severe eye injuries.

Mature and Immature Corneocyte Detection Force Distance Curves vs. Microfluorometry

Here, the author compares two methods to determine the maturity of corneocytes based on their cross-linking that could be used to evaluate the anti-aging effects of molecular agents. The first utilizes microfluorometry, while the second involves F-D curves generated via contact mode AFM. Both methods successfully detected differences in mature or immature corneocytes with 95% confidence.

Auderset presented a traditional Swiss cow bell to U.S. SCC president Tony O'Lenick as a symbol of the Secretariat's move to New York.

Alphorns, Cowbells, Magic and Gaming at IFSCC Zurich, part V

The 23rd IFSCC Congress, held Sept. 21-23, 2015, reported “more facts and less illusions” to some 550+ delegates from across the globe at the forefront of cosmetic product innovation.

Patent Picks—Suprametallogels, Detecting Analytes, Vibroturbilization and Other R&D Processes

Patent Picks are compiled by the editors from publicly available sources. This edition features inventions related to processes and methods of forming suprametallogels, synthesizing stable resveratrol, detecting target analytes, surface-treating calcium carbonate, processing dispersed systems, enhancing dermal penetration, temporarily dyeing hair and more.

Interpretation of SPF In vivo Results: Analysis and Statistical Explanation

Methods for determining SPF in vivo are based on a biological response by human skin. To overcome intrinsic variation in these methods, large numbers of volunteers and statistics are required; however, these concepts are often poorly understood or worse, misinterpreted. This article discusses how these values should be interpreted and explains what they mean to formulators.

Subjective Skin Condition And Its Association With Objective Skin Measurements

From a group of 302 volunteers, the authors obtained both selfreported Subjective evaluations of skin condition and objective measurements of skin conditions, and then looked for correlations between the subjective and objective skin measures.

Video Imaging in the Measurement of Makeup Efficacy and Performance

Video imaging techniques add quantitative data about the visual effects of makeup when evaluating efficacy and performance of products such as mascaras, lip colorants, facial foundations and nail enamels.

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Interpretation of SPF In vivo Results: Analysis and Statistical Explanation

Methods for determining SPF in vivo are based on a biological response by human skin. To overcome intrinsic variation in these methods, large numbers of volunteers and statistics are required; however, these concepts are often poorly understood or worse, misinterpreted. This article discusses how these values should be interpreted and explains what they mean to formulators.

Water Content, Nanoparticles and Skin Penetration in Brazil: Lindo Maravilhoso!

Water content, surfactants, thickeners, actives, nanoparticles and skin penetration were among the hot topics presented at the biennial XXI COLAMIQC congress of the Latin American and Iberian cosmetic chemists. Held May 14-16, 2013, in São Paulo, technical sessions were paired alongside the FCE Cosmetique exhibition and trade show for both the cosmetics and pharmaceuticals industries.

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