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May 15, 2015
This article reviews the characteristics and structure of hyaluronic acid (HA), then explores how multi-detector gel permeation/size exclusion chromatography (GPC/SEC) and microrheology techniques can be jointly applied to determine the structure-function relationships that support the successful inclusion of HA in cosmetic formulations. Experimental studies are provided to highlight the value of these techniques.
Sep 17, 2014
Abnormal epidermal turnover in psoriatic skin impairs its barrier function and tissue repair capabilities. Therefore, studies of hyperkeratinization and hyperproliferation have been conducted to better understand the disease. Here, the administration of heavy water and a tape-stripping method are used to measure skin protein turnover in psoriatic skin and surrounding tissues. Results demonstrate benefits over other proliferation measurements.
Jun 1, 2014
From the December 2001 issue of Cosmetics & Toiletries, this article describes how both bending and abrasion should be tested–along with extension–when evaluating hair strength, as the authors show here in tests of an active developed to increase the strength of bleached hair.
Nov 20, 2013
The Interagency Coordinating Committee on the Validation of Alternative Methods (ICCVAM) has requested the submission of new science or information on alternative test methods or testing strategies for skin sensitization, as part of a plan of action to advance this area.
Nov 13, 2013
Research from the University of Gothenburg has led to a potential method for identifying allergenic fragrance compounds in consumer products by exposing them to air.