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In vitro
New in In vitro (page 10 of 14)
Oct 01, 2007 | 05:03 PM CDT
In Vitro and In Vivo Offered for Sunscreen Testing
Laboratoire Dermscan and HelioScreen Labs are combining their skills to offer a complete new in vitro / in vivo service in the field of sunscreen testing.
Sep 28, 2007 | 10:30 AM CDT
Preservative Efficacy Testing: Accelerating the Process
By: John I. Yablonski and Sharon E. Mancuso, Bio-C…
A preservative efficacy testing method, called accelerated double challenge, rapidly—in 14 days—assesses the ability of a product or material to resist microbial contamination. It also maintains a high degree of correlation with longer-term preservative challenge protocols.
Sep 04, 2007 | 11:43 AM CDT
A Dermatological View—Squamometry: An Early Predictor of Changes in the Skin Barrier
By: Véranne Charbonnier, Marc Paye and Howard I. M…
Squamometry is useful in identifying the low or subclinical irritation potential of substances even before any change in the TEWL can be measured.
Sep 04, 2007 | 11:36 AM CDT
Testing Tactics: In Vitro Approaches to Antiaging Testing
By: Robert Holtz, BioInnovation Laboratories
Using proper methods, it is possible to screen materials for potential antiaging effects; in turn, these materials can be incorporated into cosmetic or personal care products. To properly screen antiaging materials, all that is required is a basic understanding of the aging process.
Apr 30, 2007 | 03:35 PM CDT
Texture Analysis to Select Packaging and Formulate Hair Care Products
By: Jo Smewing Stable, Micro Systems Ltd. and Janu…
Texture analysis provides quantitative information about a material’s response when deformed by a controlled force. Examples illustrate the use of a texture analyzer to evaluate shampoo extrusion, hair spray film toughness, hair spray tackiness, styling wax hardness and aerosol canister deployment.
Apr 30, 2007 | 01:23 PM CDT
Testing Tactics--In Vitro Sensitization Models: Current Progress
By: Robert Holtz, BioInnovation Laboratories
Several interesting and promising approaches to in vitro skin sensitization testing are in development. Perhaps it will not be long before they are deemed valid and reliable alternatives to animal testing.
Apr 02, 2007 | 11:01 AM CDT
Watermelon Survival Strategies for Skin DNA Protection
By: Cornelia Huber, Thomas Schreier, Pentapharm Lt…
Plants living under extreme conditions have developed a strategy to protect their DNA and other important cell structures from environmental stress factors. In particular, watermelon (Citrullus lanatus) has adapted well to extreme conditions. Its survival strategy can be used in the field of skin care, as shown by several tests including a direct DNA protection assay, the COMET assay and 8-oxo-guanosine and p53 detection.
Mar 27, 2007 | 04:55 PM CDT
Enhancing, Measuring Skin Penetration
Skin penetration is of great interest to personal care formulators for many reasons. Following are a few recent findings.
Mar 02, 2007 | 10:46 AM CST
A Dermatological View: Antioxidant Inhibits UV Erythema In Vivo in Humans
By: Hongbo Zhai, MD, and Howard I. Maibach, MD, Un…
Described here was an in vivo model to determine antioxidative capacity of a topical skin care emulsion versus the emulsion’s vehicle on human skin that was exposed to UVR. Results suggest the test emulsion and its vehicle control inhibited the induction of erythema and reduced inflammation caused by the UV exposure.
Feb 01, 2007 | 02:06 PM CST
Testing Tactics: In Vitro Methods to Test Materials for UV Protective Capabilities
By: Robert Holtz, BioInnovation Laboratories
The methods described in this article highlight some of the markers that can be used to assess the UV protective effects of a test material. All of these markers represent either an index of UV-induced damage to the cell or the cell’s response to the damage.