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Recent in Testing (page 24 of 27)

A Synthetic Tissue-based In vitro Ocular Irritation Assay

The testing of personal care products for ocular irritancy ensures their safety, proper labeling and consumer satisfaction. In relation, there is a current demand for animal-alternative tests. Thus, described here is a method using synthetic tissue to test for mild, moderate and severe ocular irritation, including data validating this method as an effective means to screen products.

Brookfeld Designs Fixture to Test Cosmetic Pencil Hardness

Brookfield Engineering Laboratories has has added a fixture to its offering that tests the hardness of cosmetic pencils.

Substantiating Skin Care Claims

Evalulab will discuss its clinical testing services specializing in the safety and efficacy of skin care products, to root product claims in science.

A Novel Method to Measure and Pre-select Functional Filler Pigments

Functional filler pigments play an important role in adjusting optical properties such as transparency and soft focus effects in cosmetics. However, their suitability for specific formulas is not apparent until time-consuming tests using many different fillers have been conducted. Therefore, a new method to predetermine the soft focus effects of functional filler pigments is described here.

EPA, L'Oréal Collaborate to Build Animal-Alternative Test Methods

The US Environmental Protection Agency (EPA) and global cosmetic manufacturer L’Oréal announced a research collaboration to develop animal-alternative toxicity tests to ensure product safety.

New method to Reproduce In vitro Cosmetic Product Photostability Findings

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

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*

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

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

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

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

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.

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