Most Popular in Testing
- How Damaged is Hair? Part One: Surface Damage
- Untouched, 'Primitive' Microbiome Sets the Skin Health Benchmark
- Toxicity Testing: Read Between the Lines
- Depth Perception: FTIR Reveals Devices Deliver Actives and Hydration Deeper
- Zeta Potential and Particle Size to Predict Emulsion Stability
- Beating the Damaging Effects of Heat on Hair
- Skin Barrier Impaired? Two 'TEWLs' to Tell
- Evaluating Hair Conditioning with Instrumental Combing
- Measuring Hair Strength, Part I: Stress-Strain Curves
- Soft-focus for the Selfie-obsessed: Eye Tracking to Improve Color Formula Development
Recent in Testing (page 24 of 25)
Jun 25, 2010
This benchmarking study allows manufacturers to test hair products for conditioning, anti-breakage strengthening, and anti-static flyaway reduction with shared controls and labor to reduce costs by up to 57%. The company is accepting participants until Aug. 15, 2010.
Jun 8, 2010
CeeTox has acquired assets of ADMETRx Inc. that allow it to expand its range of in vitro service offerings. Specifically, the acquired assets allow CeeTox to increase its existing Absorption, Distribution, Metabolism, Excretion (ADME) capabilities.
Jun 2, 2010
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 | P. Ziosi, S. Manfredini, S. Vertuani, V. Ruscetta, M. Radice and G. Sacchetti, Università Degli Studi di Ferrara; and R. Bruni, Università Degli Studi di Parma
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.
Apr 30, 2010 | Leigh A. Belcher, Carl F. Muska, PhD, and Joseph W. DeSalvo, DuPont
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 | Sara Farahmand, PhD, University of Cincinnati College of Pharmacy; and Howard I. Maibach, MD, PhD, University of California School of Medicine
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 17, 2010 | 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 | 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 | Katie Schaefer, Cosmetics & Toiletries magazine
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.
Jan 29, 2010 | Hongbo Zhai, MD, and Howard I. Maibach, MD, University of California San Francisco
New methodologies have recently been developed to determine antioxidant effects but they often require extensive training and are time-consuming to conduct. In the present article, however, the authors describe an in vitro method to detect the effects of antioxidant-containing formulations using photochemiluminescence to provide rapid, accurate and sensitive measurements.
Jan 25, 2010
A chip created by L'Oréal and Hurel Corp. is designed to replace the local lymph node assay, a test often performed on cosmetic raw materials. In addition to saving animals, the chip is also said to be less expensive than animal testing. Hurel developed the working microfluidic portion of the chip.
Oct 26, 2009
A new software platform has been designed to improve the efficiency and effectiveness of chemical and materials research to increase research productivity and decrease time-to-innovation.