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In vitro
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Jan 05, 2012 | 04:33 PM CST
Hair Color Vibrance Factor to Characterize Shine and Color Intensity*
By: Timothy Gao, PhD; Peter Landa; Regan Tillou; a…
To evaluate the comprehensive effects of shine and color intensity in hair, a hair color vibrance factor has been developed to enable new claims for hair dye formulas and after-dye treatments. Experimental results described here show how varying the ingredients in shine spray and hair dye formulas affect this factor and correlate with subjective panelist assessments.
Oct 28, 2011 | 11:26 AM CDT
Lab Lessons—Wise Words From the Bench With Sergio Nacht, PhD
By: Katie Anderson (Schaefer), Cosmetics & Toiletr…
Today, product formulation goes hand in hand with efficacy testing, but nearly 40 years ago, when Sergio Nacht, PhD, started out in the personal care industry, it was a different story. Throughout his decades in personal care, Nacht has developed methodologies that have allowed the personal care industry to establish efficacy of a product and convey this to the consumer. He has also been instrumental in the increased efficacy of personal care products through sustained release.
Jun 30, 2011 | 11:49 AM CDT
Rapid Colorimetric Analysis of para-Phenylenediamine in Henna-based, Non-permanent Tattoo Color Mixtures
By: Christopher T. Krüger; Dirk W. Lachenmeier, Ph…
In some henna mixtures, para-phenylenediamine (PPD) has illegally been added and it is responsible for complications such as allergic contact dermatitis. While high-performance liquid chromatography has previously been used to detect PPD, a colorimetric method that is faster and portable, described here, has been developed. For product developers, this method can be used to evaluate henna plant extracts.
May 25, 2011 | 10:37 AM CDT
P&G Presents 'Omics' Findings in Acne, Male Grooming, Dandruff and Anti-aging
During the World Congress of Dermatology, Procter & Gamble Beauty and Grooming is presenting new findings in acne, male grooming, dandruff and anti-aging based on a broader "omics"—i.e., genomics, proteomics and metabolomics, research tool.
Mar 23, 2011 | 08:19 AM CDT
Traditional Microscope Gets a 3-D Upgrade
Researchers at Ohio State University have invented a single lens that enables microscopic objects to be viewed from nine angles at once to create a 3-D image.
Feb 16, 2011 | 11:44 AM CST
ICCVAM and NICEATM Hold Meeting on Endocrine Disruptor Test Method
ICCVAM and NICEATM will hold a peer review meeting on March 29-30, 2011, for an in vitro test method that determines if chemicals are endocrine disruptors.
Feb 03, 2011 | 03:43 PM CST
A Review of Genomic Techniques in Cosmetics Testing
By: Remona Gopaul,*† Helen Knaggs, PhD,* and R. Ra…
Genomics assists product developers in understanding the expression of specific genes and their relationship to particular skin attributes. This article reviews commonly used testing techniques, such as DNA microarray, RT-PCR, SAGE, northern blot and RNA sequencing, and describes their application in testing the effects of cosmetic ingredients and products on skin.
Dec 28, 2010 | 02:27 PM CST
Genomics Take the Cake at the SCC December Meeting
By: Rachel Grabenhofer, C&T magazine
The Society of Cosmetic Chemists (SCC) took innovation down to the genome level in not one but two of the five conference tracks presented Dec. 9–10, 2010, at the Annual Scientific Meeting and Technology Showcase.
Dec 21, 2010 | 02:12 PM CST
ISO Equips Formulators to Identify Low-risk Cosmetic Products
The International Organization for Standardization (ISO) has released an international standard that will assist the cosmetic industry in identifying those products that have a low potential for contamination.
Nov 01, 2010 | 01:51 PM CDT
Fluorescence Laser Scanning Confocal Microscopy to Assess the Penetration of Low Molecular Protein Hydrolyzates Into Hair
By: Olga Freis and Dominique Gauché, Laboratoires …
The present study uses confocal laser scanning fluorescence microscopy to assess the penetration of protein hydrolyzates into hair. While higher amounts of protein were found in the cuticle, still significant quantities were observed in the cortical parts of hair, and this penetration was enhanced by longer incubation times.