Method Development/Validation

Recent in Method Development/Validation (page 1 of 2)

Laboratoires Expanscience Launches Slimming Ingredient

Laboratoires Expanscience introduced Macaline, its first cosmetic active ingredient with slimming properties including draining and firming.

Ashland’s Ingredients Portfolio Advances Worldwide

Ashland integrated its research and development facilities across the world to measure the performance of its ingredients portfolio based on consumer populations in major markets.

Yield Stress Measurements for Personal Care, Part I: Definitions and Basics

The aim of this article series is to properly define and differentiate yield stress from high viscosity, as well as develop a method for assessing whether a sample has a yield stress. In addition, it will illustrate how to determine the amount of yield needed for a given application.

Applied Neuroscience to Understand Cosmetic Consumers: Product Development (part III)

By measuring the non-conscious consumer response to products, concepts and before/after results, it is possible to make decisions for product development and marketing, as well as develop product claims. These possibilities are discussed in this three-part series, as are two case studies.

Applied Neuroscience to Understand Cosmetic Consumers: Consumer Study (part II)

By measuring the non-conscious consumer response to products, concepts and before/after results, it is possible to make decisions for product development and marketing, as well as develop product claims. These possibilities are discussed in this three-part series, as are two case studies.

Applied Neuroscience to Understand Cosmetic Consumers: Definitions (part I)

By measuring the non-conscious consumer response to products, concepts and before/after results, it is possible to make decisions for product development and marketing, as well as develop product claims. These possibilities are discussed in this three-part series, as are two case studies.

Fraunhofer Develops Method to Identify Titanium Nanoparticles

The Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, in Stuttgart, Germany, recently highlighted the work of scientist Gabriele Beck-Schwadorf and her team, who developed a new method based on mass to identify nanoparticles in media such as sunscreens.

Capillary Electrophoresis: ‘Green’ Method to Quantify Cosmetic Components

In relation, in his Ph.D. thesis, Josu López, researcher, developed and applied three “green” analytical methods to simultaneously analyze and quantify various components used in cosmetics.

EC, EFSA to Examine Endocrine Disruptors

The European Commission Directorate General for Health and Food Safety will hold a one-day conference in Brussels on June 1, 2015, to determine the criteria to identify endocrine disruptors and the European Food Safety Authority will participate.

Analytical Techniques for Hyaluronic Acid Formulation

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.

Non-Invasive Measurement of Epidermal Proteins for Psoriasis and Skin Care*

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.

From the Archives … Flexabrasion: A Method for Evaluating Hair Strength

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.

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