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Testing
New in Testing (page 2 of 25)
Apr 04, 2013 | 01:20 PM CDT
Hair Ethnicity and Ellipticity: A Preliminary Study
By: Ali N. Syed, PhD; Tomas N. Ventura Jr.; and Ma…
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.
Mar 05, 2013 | 12:38 PM CST
Compass—Affinity to Water
By: Rachel Grabenhofer, Cosmetics & Toiletries mag…
While our path may appear to veer far from water, its status as the universal solvent will bring us back to the source.
Mar 05, 2013 | 12:32 PM CST
A High Throughput Method to Predict Skin Penetration and Screen Topical Formulations
By: Konstantin Tsinman, PhD, Pion Inc.; Bálint Sin…
This work studies the applicability of a 96-well-based skin-mimetic artificial membrane permeability model to differentiate between topical pharmaceutical and cosmetic formulations. Results are compared with data obtained from in vitro Franz cell permeability measurements and reveal the applicability of this method to assess cosmetic formulation permeation and speed the discovery process.
Mar 05, 2013 | 12:21 PM CST
Influence of Skin Diffuse Reflectance on Sun Damage and Ingredient Efficacy Measurements
By: Olga V. Dueva-Koganov, PhD, Artyom Duev and St…
Current in vitro methods to assess photostability and antioxidant activity do not account for the diffuse reflectance of skin. Described here is an in vitro test that addresses this variable, mimics end-use product conditions and models photodamage processes. The approach is employed to determine the efficacy of an antioxidant from the Camellia sinensis (tea) plant.
Mar 05, 2013 | 11:49 AM CST
Adjusting Substrate/Product Interfacial Properties to Improve In vivo/In vitro SPF Correlation
By: S. Miksa, D. Lutz and J. Ongenaed, HelioScreen…
This work evaluates the impact of a plasma treatment on test substrates to modify their surface energy, to more closely correlate in vitro SPF measurements with in vivo measurements—without chemically altering the test products. The authors chose the level of plasma modification to use on a substrate based on in vivo values; they explain how to choose it regarding specific formulas in a further paper.
Feb 01, 2013 | 02:58 PM CST
The Effect of Skin Metabolism on the Absorption of Chemicals
By: Alain Mavon, PhD, and Carine Jacques-Jamin, Ph…
Skin expresses enzymes that can metabolize endogenous molecules but little is known regarding how they impact the delivery of xenobiotics. This review of recent works shows that skin metabolism alters the dermal absorption of lipophilic compounds, which opens new areas of investigation regarding the safety and efficacy of topically applied cosmetics.
Jan 16, 2013 | 08:59 AM CST
Cosmetics & Toiletries Adds Coty Sun Care Advisor
Cosmetics & Toiletries is pleased to welcome Marc Pissavini, PhD, to its prestigious Scientific Advisory Board. Pissavini began his career as an analytical chemist and in 1998, joined the sun research department of Coty-Lancaster in Monaco. Since 2008, he has served as the director of Basic and Applied Research for the company.
Jan 04, 2013 | 12:43 PM CST
Consumer Perception of Fine Lines and Wrinkles Assessed by Qualitative Methods
By: Rosanna Mootoo, Stephanie Basile, Cristina St…
There are varying definitions, associations and overall impressions of fine lines and wrinkles among different consumer segments. The findings of this study offer invaluable insight into consumers’ opinions, and by qualitative in-depth interviews, they provide a well-defined vernacular for aging descriptors. This language is critical for developmental research, consumer evaluation and marketing within the cosmetic industry.
Jan 03, 2013 | 03:37 PM CST
Shiseido Develops Method Using Spectrometry to Display Skin Permeation
Shiseido has developed a method to assess the skin permeation of cosmetic ingredients using a novel spectrometry technology.
Nov 20, 2012 | 02:23 PM CST
Peptide Microarray to Advance Product Development
Pepchipomics is a new project supported by the FP7 of the European Union aimed at synthesizing and reading high-density peptide microarrays, resulting in a new high-throughput platform that integrates peptide synthesis, detection and analysis at an unprecedented scale.