Need Training?
Build a solid foundation in science, formulation and product development—find out more!
Most Popular in:
Testing
New in Testing (page 12 of 25)
Jul 01, 2009 | 10:58 AM CDT
Cutest Offers UVA Sunscreen Testing
Cutest Systems Ltd has installed a Labsphere UV-2000S sunscreen analyzer at the companies laboratories in Cardiff, Wales.
Jun 30, 2009 | 02:44 PM CDT
Evaluating Water Permeability and Occlusion in Wound Dressings and Topical Cosmetics
By: Hongbo Zhai, MD, and Howard I. Maibach, MD, Un…
The present study uses an evaporimeter to measure the degree of water loss from in vitro skin samples covered by occlusive and semi-occlusive wound dressings to serve as a model for determining the effectiveness of occlusive cosmetic formulations. The purpose of this work was to develop a model for determining the effectiveness of occlusive cosmetic formulations.
May 21, 2009 | 11:58 AM CDT
Researchers Initiate Automation of Skin Model Production
Instead of just a single layer skin model of a single cell type, the researchers have access to a patent-protected skin model that consists of two layers with different cell types. The researchers liken this model to a perfect copy of human skin and are in the process of developing the first fully-automated process chain for manufacturing two-layer skin models.
May 04, 2009 | 04:36 PM CDT
DNA: Hard Evidence of Cosmeceutical Claims
By: Katie Schaefer, Cosmetics & Toiletries magazin…
To support finished product or raw material claims these two in vitro methods—the Affymetrix microarray and the Taqman Real Time Polymerase Chain Reaction (PCR)—measure the up-regulation or down-regulation of genes.
May 04, 2009 | 04:30 PM CDT
In vivo Quantification of Corneocyte Lipids by Image Analysis
By: David Boudier, Nathalie Guichard, Josselin Bre…
In a new method described here by the authors, fluorescence emitted from samples and captured by image analysis is used to quantify the number of lipids present in the cornified cell envelope. This in vivo approach is fast and noninvasive and could be used to screen molecules for potential moisturizing and restructuring effects.
Apr 01, 2009 | 11:53 AM CDT
In Vitro Model for Decontamination of Human Skin
By: Hongbo Zhai, MD, University of California; and…
The present study utilized an in vitro model to compare the decontamination capacity of three model decontaminant solutions: tap water, isotonic saline and hypertonic saline. Human cadaver skin samples were dosed with radio-labeled [14C]-formaldehyde and the surface skin of each sample was washed after each exposure with one of the three model decontaminant solutions.
Mar 11, 2009 | 09:44 AM CDT
Calling All Chemists, Formulators and Researchers
Are you sitting on a research “gold mine”? Get your work published! Cosmetics & Toiletries magazine is interested in your research as it pertains to cosmetics and personal care R&D.
Feb 27, 2009 | 10:56 AM CST
Dermal Absorption Guidelines for Cosmetic Ingredients: An In Vitro Method
By: Nava Dayan, PhD, Lipo Chemicals Inc.
Ex vivo skin absorption studies measure the penetration and permeation of a compound to assess its safety, and can assist the formulator in increasing product efficacy and reducing toxicity. This review analyzes the currently available guidelines published by four major regulatory organizations to clarify important milestones in study design, data analysis and interpretation.
Feb 23, 2009 | 02:31 PM CST
Much Ado About Nothing: Cosmetics Testing with a Placebo
By: Johann W. Wiechers, PhD, JW Solutions
In this column, the author investigates the source of the placebo effect. In addition, he asks the question: Must cosmetics testing always incorporate tests against a placebo?
Feb 05, 2009 | 09:32 AM CST
Sensory Congress Announced for Summer 2009
The congress will gather scientists and professionals to explore new paths open to the perfume and cosmetics business through novel research carried out on the senses.