Recent in Testing (page 23 of 32)

In Vitro Model for Decontamination of Human Skin

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.

Dermal Absorption Guidelines for Cosmetic Ingredients: An In Vitro Method

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.

Measuring Antioxidant Capacity of Cosmetics with Emitted Light

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.

Much Ado About Nothing: Cosmetics Testing with a Placebo

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?

Tape Stripping Method in Humans: Comparison of Evaporimetric Methods

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.

TRI/Princeton Benchmarks Hair Product Performance

This first effort is focused on the key performance attributes of shampoos, 2-in-1 shampoo and conditioners and shampoo/conditioner systems.

ECVAM Approves Harmonized Lymph Node Assay Standards

ECVAM's Scientific Advisory Committee has endorsed the scientific validity of the harmonized ECVAM performance standards for the Local Lymph Node Assay.

ESAC Approves Two In Vitro Skin Irritation Methods

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.

Researchers Develop Hair Counting Software

The company's software uses images captured by a small flatbed scanner pressed onto the skin.

Framework Adopted from Animal Alternative Cooperation

A framework has been adopted to increase international cooperation, collaboration and communication on alternative test methods.

The Air Up There: Skin VOCs

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.

In Vitro Methods to Test Materials for Ozone Protective Capabilities

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.

Can't find what you're looking for? Try searching, or looking through past issues.