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In vitro
New in In vitro (page 9 of 14)
May 01, 2008 | 11:58 AM CDT
REACH and In Vitro Alternatives: Phototoxicity Testing
By: Robert Holtz, BioInnovation Laboratories
This is the third column in a continuing discussion regarding the new REACH regulations and their impact on chemical testing. The first appeared in December 2007 and discussed dermal corrosive potential testing; the second, in February 2008, covered dermal irritancy potential testing.
Apr 08, 2008 | 01:43 PM CDT
Analytical Device Raises the Bar on UVA-PF
A new UV transmittance analyzer has been designed to exceed Colipa's UVA protection factor (UVA-PF) requirements to support the development of higher protection factor sunscreens.
Feb 29, 2008 | 11:17 AM CST
Three Decades of Patch Testing: Trends in the North American Populace
By: Shawn Nguyen; Thao Dang; Cora MacPherson, PhD;…
This report evaluates the trends in the results of patch testing. The patch test reactions were surveyed retrospectively. The results were statistically compared between 1970 and 2002 because appropriate interpretation of the numbers has public health opportunities.
Feb 29, 2008 | 11:13 AM CST
Green Formulations: Not All Components Are Equal
By: A. Cristoni, G. Maramaldi and C. Artaria, Inde…
In the consumer’s mind, a natural or green cosmetic is automatically safe; however, the safety, quality and efficacy of botanical ingredients used in formulations need to be carefully assessed. Stability is also an important issue. Current research is directing analyses of final formulations to evaluate not only their cosmetic raw materials, but also their active materials.
Feb 05, 2008 | 08:46 AM CST
Testing Tactics: REACH and In vitro Alternatives: Skin Irritation Testing
By: Robert Holtz, BioInnovation Laboratories
Welcome back to a continuing discussion regarding the new Registration, Evaluation and Authorization of Chemicals (REACH) regulation and its impact on chemical testing. It is the purpose of this series of articles to provide an overview of these existing validated in vitro methods, as well as new methods that are being considered for validation.
Feb 05, 2008 | 08:20 AM CST
Texture Analysis to Quantify Skin Care Product Efficacy
By: Katie Schaefer
Using a texture analyzer to measure the tightness of the skin before and after the application of selected treatments, the authors demonstrate the potential of texture analysis instrumentation in testing the efficacy of skin care products and substantiating skin tightening claims.
Jan 04, 2008 | 10:43 AM CST
In Sight—QOL Testing: Complementing Clinicals
By: K. Schaefer, Cosmetics & Toiletries magazine
Personal care efficacy tests are known to test the physical effects or toxicity of products, often omitting more abstract and possibly equally as important factors such as well-being.
Dec 03, 2007 | 11:40 AM CST
Rheological Characterization of a Modified Taurate Acrylic Polymer for Skin Care
By: Andrea Mitarotonda and Arianna Benetti, Lamber…
The rheology of a pre-neutralized, hydrophobically modified acrylic polymer was investigated by dynamic mechanical measurements using this methodological approach to establish its viscoelastic profile and stability in formulations. Properties of several polymer-containing emulsions were studied and their particle size distribution investigated by laser diffraction.
Nov 05, 2007 | 05:42 PM CST
Alternative Testing or Testing Alternatives?
Johann Wiechers, PhD, writes: I am driving in a taxi somewhere with a female colleague when she asks me an intriguing question. “Tell me, Johann, how would you measure breast firming?”
Oct 09, 2007 | 02:53 PM CDT
With the Speed of Light: A Look at Accelerated Testing
We test a number of things in our cosmetic industry. We test for safety; for stability; for efficacy; for microbiological contamination; and for interactions between the (ingredients of the) product and its container.