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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.

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.

Human Epidermal Melanocytes for Cosmetic and Dermal Studies

Lonza announces the availability of primary Clonetics Adult Normal Human Epidermal Melanocytes.

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In Vitro and In Vivo Offered for Sunscreen Testing

Laboratoire Dermscan and HelioScreen Labs are combining their skills to offer a complete new in vitro / in vivo service in the field of sunscreen testing.

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.

Characterization of Multilamellar Vesicles for Cleansing Applications

In the present article, the authors characterize a multilamellar vesicle (MLV) system used in personal care and verify its structure via X-ray scattering, rheology and fluorescence microscopy. This enabled the study of MLV formation to investigate bulk rheology characteristics. The results are presented here as application-relevant properties.

Expanded Parameters for Particle Analysis

Fluid Imaging Technologies has launched a particle analysis instrument that permits 23 measurement parameters.

With the Speed of Light: A Look at Accelerated Testing

We test a number of things in our cosmetic industry. We test for safety; for stability; for efficacy; for microbiological contamination; and for interactions between the (ingredients of the) product and its container.

Enhancing, Measuring Skin Penetration

Skin penetration is of great interest to personal care formulators for many reasons. Following are a few recent findings.

Biochip Takes the Next Step Toward Replacing Animal Testing

Researchers at Rensselaer, the University of California-Berkeley, and Solidus Biosciences Inc. have developed a biochip that can mimic the effects of metabolism and analyze materials for toxicity.

Alternative Testing or Testing Alternatives?

Johann Wiechers, PhD, writes: I am driving in a taxi somewhere with a female colleague when she asks me an intriguing question. “Tell me, Johann, how would you measure breast firming?”

Texture Analysis to Select Packaging and Formulate Hair Care Products

Texture analysis provides quantitative information about a material’s response when deformed by a controlled force. Examples illustrate the use of a texture analyzer to evaluate shampoo extrusion, hair spray film toughness, hair spray tackiness, styling wax hardness and aerosol canister deployment.

BioScreen Offers Asian Panels

Beginning fall 2006, BioScreen will begin offering Asian subject panels.

A Screen for Microbial Contamination

Celsis International introduces the next generation in bioluminescence technology that screens for microbial contamination of personal care products.

Microscopic Scaffolding for Wound Healing, Toxicity Testing

The UK-based EPSRC announced the development of a dissolvable scaffold to grow skin tissue that could offer a new method to treat wounds, as well as possibilities for toxicity testing of cosmetics.

Analytical Device Raises the Bar on UVA-PF

A new UV transmittance analyzer has been designed to exceed Colipa's UVA protection factor (UVA-PF) requirements to support the development of higher protection factor sunscreens.