Most Popular in Testing
- Heat Protection Getting Warmer: Specialty Silicones for Hair
- Nonreactive Paths to Internal Changes: Modifying Hair’s Structure from the Inside, Part 2
- Testing and Developing a Sugar-derived Surfactant Blend for Delicate Skin
- Evaluating the Physiochemical Properties of Emollient Esters for Cosmetic Use
- Evaluating 1,3-Propanediol for Potential Skin Effects
- VIDEO: P&G Scientists on Claims Substantiation in Anti-dandruff Care
- Modifying Hair’s Structure From the Inside
- Measuring Hair Strength, Part I: Stress-Strain Curves
- Zeta Potential and Particle Size to Predict Emulsion Stability
- 'Zapping' Sensitive Skin: Capsaicin Tests Show Embelia concinna Comforts Irritation
Recent in Testing (page 18 of 32)
May 4, 2012
Evalulab will discuss its clinical testing services specializing in the safety and efficacy of skin care products, to root product claims in science.
May 3, 2012 | Miriam Becker, Christoph Schmidt, PhD, Veronika Hochstein and Xenia Petsitis, Merck KGaA, Darmstadt, Germany
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.
Apr 9, 2012 | Katie Anderson
After 25 years in the industry, Gavin Greenoak, managing and scientific director of the Australian Photobiology Testing Facility Pty., Ltd. (APTF), continues to strive for a better understanding of the interaction of light and the human body. Greenoak’s career began in cancer research, which has afforded him unique insight of skin biology and the effects of sun exposure.
Mar 12, 2012
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.
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.
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.
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.
Dec 7, 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.
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.
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.
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.
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Between The Covers Discover:
- Amino acid distribution and biochemistry
- Examination of strength and anti-breakage product claims
- Hair: growth cycle, heat protection, shine, and color intensity and retention
- Overview of shampoos and issues relating to surfactants
- Science of hair color including chemical reactions and formulations
- Ethnic differences in hair and absorption of materials
- Evaluate and quantify visual properties of hair
- Dandruff-Causes and biology of the condition
- Hair styling products and polymers
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Finally! This book offers practical approach to the formulation chemist’s day-to-day endeavors by: addressing the innumerable challenges facing the chemist both in design and at bench, such as formulating with/for specific properties; offering valuable “tips” to troubleshooting issues regarding ingredient selection and interaction, regulatory concerns that must be addressed early in development, and the extrapolation of preservative systems; exploring the advantages and limitations of raw materials; addressing scale-up and pilot production process and concerns; and much more.Order your copy today.