Most Popular in Testing
- Modifying Hair’s Structure From the Inside
- SPF Tests Reveal No Ideal In vitro Substrate Exists
- How to Prove 'Rub-resistant' Sun Protection
- It'll Grow on You: Fully Functional 3D Skin Model
- Evaluating 1,3-Propanediol for Potential Skin Effects
- Ranking Body Creams by Sensory Properties
- Zeta Potential and Particle Size to Predict Emulsion Stability
- Can New Approaches Pave the Way for Better Toxicology?
- Testing Moisturizing Claims for Skin
- A Dermatological View: Antioxidant Inhibits UV Erythema In Vivo in Humans
Recent in Testing (page 5 of 32)
Feb 25, 2015
Mechanisms implied in the skin absorption process and the role of cutaneous metabolism are of increasing interest to cosmetics research. In the present paper, the authors demonstrate how an experimental human skin explant model exhibiting great barrier function and metabolic activities can provide an understanding of what happens to cosmetic actives when they are topically applied.
Jan 29, 2015
Around 10-12 years ago, shampoos and conditioners began appearing on the market claiming to be “color safe.” This strongly resonated with consumers. The present article discusses various contributors to the color fade process with a specific emphasis on measurements to quantify and understand color fade.
Jan 13, 2015
Reports are circulating that South Korea's Ministry of Agriculture, Food and Rural Affairs (MAFRA) has published a "5 Year Plan for Animal Welfare" that establishes a plan to phase out animal testing for cosmetic products and eventually cosmetic ingredients.
Nov 19, 2014
Emulsions are popular vehicles in skin care due to their affinity for the skin; however, they are thermodynamically unstable systems. This study investigates zeta potential and particle size distribution as potential screening tools to predict instabilities in emulsion-based cosmetic products, to supplement regular accelerated stability testing.
Nov 12, 2014
Hair is a distinctly variable material, and the nature of this substrate can have a major impact on laboratory test results. This article discusses hair as a laboratory substrate to provide guidance on minimizing variability and creating optimal test conditions.
Oct 8, 2014
L'Oréal was granted a Chinese business license for Shanghai Episkin Biotechnology Ltd., the company it created to market the Asian version of its reconstructed skin model Episkin.
Sep 16, 2014
Abnormal epidermal turnover in psoriatic skin impairs its barrier function and tissue repair capabilities. Therefore, studies of hyperkeratinization and hyperproliferation have been conducted to better understand the disease. Here, the administration of heavy water and a tape-stripping method are used to measure skin protein turnover in psoriatic skin and surrounding tissues. Results demonstrate benefits over other proliferation measurements.
Aug 25, 2014
In any sun protection evaluation method, an irradiation step is required to determine the photostability of the UV filters in a product. The aim of this study was to identify key parameters involved to improve this UV exposure. Here, the authors consider temperature at the substrate surface, air flow influence and beam uniformity during UV exposition.
Aug 21, 2014
A previous article discussed traditional measurements to assess the properties of hair spray products. However, the properties of polymer films deposited by these products are not constant and can be altered by both formulation means and environmental conditions. This article highlights additional useful measurement techniques for characterizing these film properties.
Jun 17, 2014
Vegetable-derived, mild and sustainable skin cleansing ingredients are in demand, and this has led to the development of new detergent structures. Described here is a combination of two mild surfactants that fulfils these requirements using the concept of “interrupted soap” to impart mildness. Studies to verify the functional, sensorial and mild characteristics of the new blend are detailed.
May 20, 2014
There are two general classifications of hair styling products—those that help with style creation and those that prolong the style. Both facilitating style creation and promoting hold longevity stem from the presence of water-soluble polymers in formulations. This paper discusses methods to evaluate these properties and quantify performance.
May 20, 2014
From the December 2001 issue of Cosmetics & Toiletries, this article describes how both bending and abrasion should be tested–along with extension–when evaluating hair strength, as the authors show here in tests of an active developed to increase the strength of bleached hair.
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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.