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Testing
New in Testing (page 9 of 24)
Jun 02, 2010 | 09:11 AM CDT
Researchers Advance Animal-alternate Test for Skin Sensitization
Researchers at the National Institute for Occupational Safety and Health and Portland State University have developed an animal-alternative test method to assess the potential for chemicals in consumer products to cause skin allergies.
May 27, 2010 | 12:31 PM CDT
Evaluating Essential Oils in Cosmetics: Antioxidant Capacity and Functionality
By: P. Ziosi, S. Manfredini, S. Vertuani, V. Rusce…
In the present work, the antioxidant capacities of three essential oils derived from basil and thyme were evaluated using a photochemiluminescence (PCL)-based assay. In addition, since the base formulation can affect the antioxidant activity of oils contained therein, ingredient interactions within final formulations were investigated.
May 10, 2010 | 12:20 PM CDT
EU Regulation Update: Tackling the Animal Testing Ban
By: Annelie Struessman, PhD, CONUSBAT
The European Federation for Cosmetic Ingredients (EFfCI) has developed an approach for its members to address animal testing bans imposed by the 7th Amendment to the EU Cosmetics Directive.
Apr 30, 2010 | 12:40 PM CDT
Evaluating 1,3-Propanediol for Potential Skin Effects
By: Leigh A. Belcher, Carl F. Muska, PhD, and Jose…
In the present article, the authors assess the skin irritation and sensitization potential of 1,3-propanediol (INCI: Propanediol). Results in animals and humans by acute or repeat exposure support a low potential of skin reactivity for the material. In addition, the skin reactivity potential in humans was found to be lower with 1,3-propanediol than 1,2-propanediol (INCI: Propylene Glycol).
Mar 30, 2010 | 01:39 PM CDT
Predicting the Percutaneous Penetration of Cosmetic Ingredients
By: Sara Farahmand, PhD, University of Cincinnati …
While previous algorithms for predicting the skin absorption of permeants was based on in vitro data, the present article proposes a quantitative structure-activity relationship (QSAR) model based on in vivo human data. Here, a set of human in vivo data is described that provides entry into predicting the penetration of cosmetic ingredients.
Mar 16, 2010 | 05:21 PM CDT
Is Cosmetic Science Really "Bad"? Part IV: How Scientific is Cosmetic Science?
By: Johann W. Wiechers, PhD, JW Solutions
Six questions from Michael Shermer’s Baloney Detection Kit have been discussed in this series. The results were not flattering for cosmetic science (read: cosmetic scientists) but cosmetic science did not score badly on all points. Questions seven and eight, described here, discriminate true science from borderland science and non-science or nonsense.
Feb 26, 2010 | 04:56 PM CST
Mechanisms of Tape Stripping and Protein Quantification
By: Ali Alikhan, MD, and Howard I. Maibach, MD
In this article, several methods to quantify the protein collected by tape stripping are described, including traditional gravimetric methods as well as novel colorimetric and visible spectroscopic techniques. Further, one colorimetric method is described to effectively determine the keratolytic efficacy of various materials in vivo, suggesting additional roles for this method.
Feb 26, 2010 | 11:56 AM CST
Microfluidic Testing for LLNA Replacement
By: Katie Schaefer, Cosmetics & Toiletries magazin…
The Hurel Corp. has developed a microfluidic, non-animal alternative to the LLNA and it has partnered with L’Oréal to make this approach a reality—in the form of a chip.
Feb 26, 2010 | 11:51 AM CST
Translating Data into Claims and Interpreting Regulations: Science vs. Marketing
By: Nava Dayan, PhD, Lipo Chemicals
Substantial evidence, which the FDA requires to support claims for drugs, is applicable to personal care, especially considering the pharmaceutical direction products have taken. The present article considers whether the industry is benefiting from marketing without assuming the responsibility for potential effects. In addition, it considers the limitations of in vitro and in vivo test models.
Feb 19, 2010 | 11:53 AM CST
Testing in Cosmetic Valley
By: Elian Lati, Pascal Svinareff, Marc Feuilloley …
Raman spectroscopy and fringe projection are a few of the methods that have revolutionized the objectification market.