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144 Results
Section: Testing > Method/Process
Efficacy
Hidden Hair Damage and the Importance of Multiple Tests
It is of paramount importance for hair researchers to know the history of hair at the time of applying a treatment. The lack of such knowledge can create misleading results. Thus, a stress-strain test in both dry and wet states can provide a rapid means to check the reliability of the information collected, as is shown here.
Literature/Data
Testing the Fate (and Exposure) of Cosmetic Ingredients
Risk and exposure go hand-in-hand. So when researchers dared to publish a new method to assess the exposure and fate of cosmetic ingredients, we couldn't help but give them exposure, in this review.
Method/Process
A Laboratory Method for Measuring the Water Resistance of Sunscreens
A new laboratory in vitro method for the measurement of sunscreen water resistance uses spectrophotometric analysis of a model skin substitute before and after 80-minute immersion. It gives good correlation with the FDA’s 80-minute immersion SPF results (very water resistant). The method is especially good for screening new formulations or water-resistant technologies.
Literature/Data
A Hair Dyeing Solution for the Dye-allergic Consumer
This article describes how to identify allergic contact dermatitis resulting from hair dye, and outlines prevention principles for those who wish to continue dyeing their hair despite being allergic—with clear implications for those formulating these products. The main sensitizers in hair dye are discussed, along with techniques to minimize exposure to these allergenic substances.
Literature/Data
Skin Pigment Genetics is More Complex at the Equator
New research published in
Cell
presents genetic findings related to skin pigment diversity and complexity, further supporting the trend for customizable skin care.
Methods/Tools
The Estée Lauder Cos. 'Green Score' Method Could Standardize Sustainability
The company published its internal approach to evaluate ingredients and formulas through the lenses of human health, ecosystem health and the environment, in hopes that others might build upon it.
Sun Protection
Sandblasting to Improve the Reproducibility of In vitro Sunscreen Evaluation
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.
Method/Process
Kao Test Gets to the Bottom of Makeup Film Structures
Kao Corp. has developed a new test based on Raman spectroscopy to assess the internal film structure of makeup bases and determine their component distribution. An additional application explored sebum characterization in the films.
Method/Process
'Behind the Gloss'—Multiple Angles Reveal New Soft-focus Insights
Described here is a novel method to investigate the soft-focus effects of powders. It utilizes a handheld, multi-angle spectrophotometer to capture reflectance spectra at various observation angles. Results showed variances in results taken in the trans or “behind the gloss” plane, indicating which powders provide the best light-scattering capabilities.
Skin Care
Hyaluronic Acid Butyric Esters for the Improvement of Skin Functionality
The versatility of hyaluronic acid is connected to not only its size, but also to inherent opportunities within the molecule for multiple bonds and for the differentiated release of bound functional molecules. Here, ester bonds are used to introduce substitutes for the material’s alcohol groups, thus providing elasticizing, moisturizing and antiaging benefits for skin care.
Event Coverage
Which Claims Test/Tool Will Win the
C&T Allē Award
?
Which claims testing method or tool will win the
Cosmetics & Toiletries Allē Award
? Here are the finalist profiles. Find out who wins on Sept. 28, 2022, at the exclusive Awards Dinner, co-located with
Beauty Accelerate
. Register now.
Actives
The treasure of Gabès oasis to treat acneic skin
SILAB Softcare presents its second natural active ingredient ACNESIUM®, developed to prevent the clinical signs of slight to moderate acne in adults. Discover how it improves patient’s quality of life.
Sensory
Intersecting the Senses: Synesthesia to Connect Cosmetics with Emotion
Synesthesia presents a great opportunity for innovative concepts in the cosmetics field. Considering its potential, a study was undertaken to develop a product design model based on synesthetic evaluations of tactile, audio, scent and taste stimuli, and supported by neuroscience techniques and implicit and explicit evaluations.
Method/Process
Three Decades of Patch Testing: Trends in the North American Populace
This report evaluates the trends in the results of patch testing. The patch test reactions were surveyed retrospectively. The results were statistically compared between 1970 and 2002 because appropriate interpretation of the numbers has public health opportunities.
Method/Process
With the Speed of Light: A Look at Accelerated Testing
We test a number of things in our cosmetic industry. We test for safety; for stability; for efficacy; for microbiological contamination; and for interactions between the (ingredients of the) product and its container.
Event Coverage
Cosmetic Claims Put to the Test at NYSCC Suppliers' Day
A full day of conferences and conversations at NY SCC Suppliers' Day reiterated recent trends in cosmetics R&D, e.g., sustainability, transparency, efficacy, etc., but also underlined the critical need to substantiate such claims with solid science.
Cleansing
Comparatively Speaking: The INCI Names vs. Properties of Silicone Surfactants
Surface tension is a ruling factor in the formulator's world. In this edition of "Comparatively Speaking," Tony O'Lenick explains its influence on foam and wetting; he also demonstrates how little the INCI name reveals about a material's properties.
Method/Process
From the Archives … Flexabrasion: A Method for Evaluating Hair Strength
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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