Most Popular in Testing
- In vivo Delivery Confirmation: Measuring the Deposition of Salicylic Acid from Anti-acne Face Wash
- Phthalates Study Raises More Concerns, ‘But Who Cares?’
- Wet Skin Factor for Sunscreens: An In vitro Method, Part I
- Wet Skin Factor for Sunscreens: An In vitro Method, Part II
- 'Zapping' Sensitive Skin: Capsaicin Tests Show Embelia concinna Comforts Irritation
- Evaluating 1,3-Propanediol for Potential Skin Effects
- How to Prove 'Rub-resistant' Sun Protection
- Nonreactive Paths to Internal Changes: Modifying Hair’s Structure from the Inside, Part 2
- VIDEO: P&G Scientists on Claims Substantiation in Anti-dandruff Care
- Heat Protection Getting Warmer: Specialty Silicones for Hair
Recent in Testing (page 23 of 32)
Apr 1, 2009 | Hongbo Zhai, MD, University of California; and Howard I. Maibach, MD, University of California School of Medicine
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.
Feb 27, 2009 | 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 27, 2009
Knight Scientific Ltd. offers a kit to manufacturers to measure the antioxidant capacity of their finished nutraceuticals and cosmetics to justify claims, produce technical documents, confirm batch uniformity and more.
Feb 23, 2009 | 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?
Jan 30, 2009 | Hongbo Zhai, MD, and Howard I. Maibach, MD, University of California School of Medicine
The current preliminary study compared the sensitivity and correlation of open chamber device and closed chamber device on a tape stripping human model. The amount of SC removed by tape stripping was also quantified with a protein assay method.
Jan 29, 2009
This first effort is focused on the key performance attributes of shampoos, 2-in-1 shampoo and conditioners and shampoo/conditioner systems.
Jan 19, 2009
ECVAM's Scientific Advisory Committee has endorsed the scientific validity of the harmonized ECVAM performance standards for the Local Lymph Node Assay.
Dec 19, 2008
The European Centre for the Validation of Alternative Methods' (ECVAM) Scientific Advisory Committee (ESAC) endorsed the scientific validity of two in vitro skin irritation tests at its 29th meeting.
Nov 25, 2008
The company's software uses images captured by a small flatbed scanner pressed onto the skin.
Nov 5, 2008
A framework has been adopted to increase international cooperation, collaboration and communication on alternative test methods.
Oct 30, 2008 | Katie Schaefer,
In 2001, Japanese researchers reported that after the age of 40, some individuals develop a malodor known as “aging odor,” attributed to the presence of unsaturated C9, 2-nonenal. George Preti, PhD, a member of Monell Chemical Senses Center and an adjunct professor of dermatology at the University of Pennsylvania School of Medicine, was interested by this report and began to conduct research of his own.
Oct 1, 2008 | Robert Holtz, BioInnovation Laboratories
Many markers can be used to indicate epidermal stress. Therefore, it becomes clear that the skin is also a sensitive target to ozone exposure and one that could greatly benefit from cosmetic or personal care materials designed to protect against ozone.