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Methods & Processes
New in Methods & Processes (page 2 of 17)
Jul 03, 2012 | 02:51 PM CDT
A Synthetic Tissue-based In vitro Ocular Irritation Assay
By: Stewart J. Lebrun, Lebrun Labs, CA USA
The testing of personal care products for ocular irritancy ensures their safety, proper labeling and consumer satisfaction. In relation, there is a current demand for animal-alternative tests. Thus, described here is a method using synthetic tissue to test for mild, moderate and severe ocular irritation, including data validating this method as an effective means to screen products.
Jun 11, 2012 | 10:28 AM CDT
Comparatively Speaking—Creativity vs. Innovation
By: Anthony J. O'Lenick Jr., Siltech LLC
In this philosophical discussion, Tony O'Lenick considers the differences between creativity and innovation, and how they can lead to success in the consumer market.
Jun 04, 2012 | 02:56 PM CDT
A Dermatological View—In vitro Buffering Capacity of Human Skin Layers
By: Y. Zheng, MD, PhD, Third Affiliated Hospital o…
Previous studies demonstrate that skin buffering capacity can be measured in vitro by applying several concentrations of hydrogen chloride (HCl) and sodium hydroxide (NaOH) on skin and evaluating the pH change pre- and post-dosing. Here, the authors employed this technique to evaluate the buffering capacity of skin layers including intact SC, denuded SC and dermis skin samples.
May 29, 2012 | 03:20 PM CDT
Comparatively Speaking—Water vs. Oil vs. Fluoro vs. Silicone Extraction of Broccoli Fractions
By: Anthony J. O'Lenick Jr., Siltech LLC
Materials are extracted based on their solubility in different menstrua (solvents), and the spectral subtraction of solvents allows for the identification of groups present in the extracted materials. Given here is an example of how broccoli sprout fractions with four different FTIR spectra were derived using four different silicone polymer menstrua.
May 18, 2012 | 10:22 AM CDT
SCS to Evaluate Good and Bad Cosmetic Science
This May 30–31, at Trinity College in Dublin, the 2012 "European city of science," the Society of Cosmetic Scientists will join world-renowned experts to discuss the latest good and bad science shaping the future of cosmetics.
May 11, 2012 | 02:08 PM CDT
Researchers Refine Biomimetic Polymer Synthesis
In a study from the University of Warwick, researchers from the UK and Australia describe a new method to synthesize polymers offering unprecedented control over the final polymer structure.
May 08, 2012 | 05:52 PM CDT
Comparatively Speaking—Maceration vs. Decoction
By: Anthony J. O'Lenick Jr., Siltech LLC
Herein, industry expert Tony O'Lenick explains the difference between maceration and decoction, and how decoction can extract large quantities of inert materials that may contribute to microbiological spoilage.
May 03, 2012 | 02:42 PM CDT
A Novel Method to Measure and Pre-select Functional Filler Pigments
By: Miriam Becker, Christoph Schmidt, PhD, Veroni…
Functional filler pigments play an important role in adjusting optical properties such as transparency and soft focus effects in cosmetics. However, their suitability for specific formulas is not apparent until time-consuming tests using many different fillers have been conducted. Therefore, a new method to predetermine the soft focus effects of functional filler pigments is described here.
May 03, 2012 | 02:12 PM CDT
A Dermatological View—The Future of Allergic Contact Dermatitis as it Pertains to Cosmetics
By: Ali Alikhan, MD, and Howard I. Maibach, MD
Following are some aspects of patch testing that require consideration, including the ingredients used, related legislative measures and testing limitations.
Apr 25, 2012 | 09:22 AM CDT
Fluorescent Biosensor Reveals Immune System Response
Researchers at Carnegie Mellon University have discovered how immune cells exchange information using a new fluorescent biosensor developed at the university.