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Recent in Testing (page 31 of 31)

New method to Reproduce In vitro Cosmetic Product Photostability Findings

Mar 1, 2012 | Marc Pissavini, PhD, Adeline Baud, Stéphanie Marguerie, Karine Desseille and Olivier Doucet, PhD, Coty-Lancaster

The present article describes a reproducible method for determining the photostability of sunscreen products. This method is based in part on the in vitro determination of the UVA protection factor as proposed by Colipa for the irradiation aspect, and on the spectroscopy of a sunscreen in dilute solution for the absorbance measurement aspect.

ICCVAM Recommends Non-animal Endocrine Disruptor Screening

Feb 20, 2012

The Interagency Coordinating Committee on the Validation of Alternative Methods (ICCVAM) has recommended a non-animal test method to identify estrogen agonist and antagonist activity. In addition to recommending the test, ICCVAM also found the method to provide a number of benefits over the method currently employed in the United States.

Hair Color Vibrance Factor to Characterize Shine and Color Intensity*

Jan 5, 2012 | Timothy Gao, PhD; Peter Landa; Regan Tillou; and Kevin Gallagher, Croda Inc.

To evaluate the comprehensive effects of shine and color intensity in hair, a hair color vibrance factor has been developed to enable new claims for hair dye formulas and after-dye treatments. Experimental results described here show how varying the ingredients in shine spray and hair dye formulas affect this factor and correlate with subjective panelist assessments.

Public Comments Requested for Development of NICEATM-ICCVAM 2013-2017 Five-Year Plan

Dec 9, 2011

NIEHS and NICEATM invite public comments that can be considered by the ICCVAM and the agencies' program offices in updating the NICEATM-ICCVAM 2008-2012 Five-Year Plan to develop the 2013-2017 Five-Year Plan.

Lab Lessons—Wise Words From the Bench With Sergio Nacht, PhD

Lab Lessons—Wise Words From the Bench With Sergio Nacht, PhD

Oct 28, 2011 | Katie Anderson (Schaefer), Cosmetics & Toiletries magazine

Today, product formulation goes hand in hand with efficacy testing, but nearly 40 years ago, when Sergio Nacht, PhD, started out in the personal care industry, it was a different story. Throughout his decades in personal care, Nacht has developed methodologies that have allowed the personal care industry to establish efficacy of a product and convey this to the consumer. He has also been instrumental in the increased efficacy of personal care products through sustained release.

Comparatively Speaking: SPF and Calculated SPF

Aug 16, 2011 | Anthony J. O'Lenick Jr., Siltech LLC; and Dennis Lott, Tanning Research Laboratories Inc.

In order to prepare the industry for the upcoming Sunscreen Symposium, organized by the Florida chapter of the Society of Cosmetic Chemists, industry expert Tony O’Lenick asks Dennis Lott to explain the difference between SPF and calculated SPF. This is the first of two columns on sun protection.

Evaluating Hair Conditioning with Instrumental Combing

Aug 1, 2011 | Trefor Evans, PhD, TRI/Princeton

When formulating a hair care product, there is often a need for testing that validates the product’s technical performance. This testing provides guidance to create formulas with appropriate performance, while also communicating the product’s message to the consumer. This article discusses the use of instrumental combing measurements when formulating hair conditioning products.

Rapid Colorimetric Analysis of para-Phenylenediamine in Henna-based, Non-permanent Tattoo Color Mixtures

Jun 30, 2011 | Christopher T. Krüger; Dirk W. Lachenmeier, PhD; Evamaria Kratz; and Gerd Mildau, PhD, Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe

In some henna mixtures, para-phenylenediamine (PPD) has illegally been added and it is responsible for complications such as allergic contact dermatitis. While high-performance liquid chromatography has previously been used to detect PPD, a colorimetric method that is faster and portable, described here, has been developed. For product developers, this method can be used to evaluate henna plant extracts.

P&G Presents 'Omics' Findings in Acne, Male Grooming, Dandruff and Anti-aging

May 25, 2011

During the World Congress of Dermatology, Procter & Gamble Beauty and Grooming is presenting new findings in acne, male grooming, dandruff and anti-aging based on a broader "omics"—i.e., genomics, proteomics and metabolomics, research tool.

Benchmarking Study to Examine Shampoo, Conditioner Rinse Profiles

May 24, 2011

TRI/Princeton is offering a benchmarking study on the rinsing of shampoos and conditioners to allow manufacturers a lower cost option for product testing, as compared with individual tests.

Noninvasive Techniques for Anti-cellulite Product Efficacy Evaluation

May 2, 2011 | K. Bazela, PhD; R. Debowska, PhD; B. Tyszczuk; K. Rogiewicz, PhD; and I. Eris, PhD, Dr. Irena Eris Cosmetic Laboratories; R. Mlosek, PhD, Medical University of Warsaw; and A. Nowicki, PhD, Institute of Fundamental Technological Research

Although cellulite is not considered a disease, it is a significant cosmetic problem for many post-adolescent women. Recent studies using new diagnostic techniques such as ultrasound imaging can define the cellulite-reducing efficacy of cosmetics. However, there is still a need to standardize and objectify the testing procedures and to find parameters to measure anti-cellulite efficacy.

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