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Most Popular in Testing
- Sea Anemone Delivery of Collagen and γ-PGA for Anti-aging Benefits
- Smart Lipid-carotene System for Targeted Free Radical-Scavenging
- Evaluating 1,3-Propanediol for Potential Skin Effects
- Evaluating Hair Conditioning with Instrumental Combing
- A Novel Explant Model for Skin Delivery Assessment
- Preservative Efficacy Testing: Accelerating the Process
- Measuring Hair Strength, Part I: Stress-Strain Curves
- Lucas Meyer Measures Consumer Response to Phospholipid Emulsifier
- Measuring the Water Content of Hair
- Quantifying Hair Color Fading
Most Recent in Testing
Apr 20, 2015
There is likely a variety of causes and contributors to the nebulous consumer term “frizz.” This article attempts to craft a universal definition and then progresses to further examine impacting factors. These discussions focus on methods for quantifying hair properties and assessing the positive impact of commercial hair care products.
Apr 7, 2015
The effective delivery of youth-preserving collagen and moisture remains a cosmetic Holy Grail. In response, this study describes a natural microinjection system based on the stinging cells of the Cnidaria sea anemone to effectively puncture the stratum corneum layer and deliver its content—both marine collagen and γ-PGA—into skin, offering a promising new class of solutions to age-old challenges.
Mar 30, 2015
In this study, the authors evaluated the effectiveness of a new smart lipid system in stabilizing and delivering carotenes into the epidermis. The system is shown effective in providing free-radical (FR) scavenging at different stages of skin exposure: immediately neutralizing FR present in the skin, blocking FR formation during UV exposure, and accelerating skin recovery after UV exposure.
Mar 11, 2015
A study conducted by Lucas Meyer revealed that its phospholipid emulsifiers were capable of invoking positive emotion.
Mar 1, 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 17, 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.
Jul 1, 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.
Jun 1, 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.
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 1, 2014
The authors propose an approach to assess the microbial stability of a product during use, referred to as the Microbiological Use Test (MUT), and apply this analysis in case studies to predict the microbiological risk of commercial products. The described test has been used successfully in the development of cosmetics.
May 1, 2014
The aim of this study was to monitor the evolution of biomechanical and optical properties of the skin with aging. Different biophysical parameters were measured, including skin: elasticity and firmness, color, brightness, fluorescence emission, sebum content, hydration and pH. A significant evolution of the evaluated parameters with aging was observed.
Apr 23, 2014
The industry reacts to a new study published in Contact Dermatitis reviews reports of the UV absorber octocrylene for its potential to cause photo contact allergy.
Mar 20, 2014
SPF test results from substrates treated using a traditional sandblasting technique are compared with those from substrates treated using a new process. Based on the topographic control of 10 batches and 34 sunscreen evaluations, the authors concluded the new process had better topographic reproducibility, consequently improving the SPF repeatability and reproducibility in vitro.
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