Most Popular in Testing
- How Damaged is Hair? Part One: Surface Damage
- Untouched, 'Primitive' Microbiome Sets the Skin Health Benchmark
- Toxicity Testing: Read Between the Lines
- Depth Perception: FTIR Reveals Devices Deliver Actives and Hydration Deeper
- Zeta Potential and Particle Size to Predict Emulsion Stability
- Skin Barrier Impaired? Two 'TEWLs' to Tell
- Beating the Damaging Effects of Heat on Hair
- Measuring Hair Strength, Part I: Stress-Strain Curves
- Evaluating Hair Conditioning with Instrumental Combing
- Soft-focus for the Selfie-obsessed: Eye Tracking to Improve Color Formula Development
Recent in Testing (page 23 of 25)
Feb 23, 2011
Jannick Rolland, PhD, an optics professor at the University of Rochester in New York, has developed an optical probe equipped with a liquid lens that takes images under the skin’s surface without the use of invasive procedures.
Feb 16, 2011
ICCVAM and NICEATM will hold a peer review meeting on March 29-30, 2011, for an in vitro test method that determines if chemicals are endocrine disruptors.
Feb 3, 2011 | Remona Gopaul,*† Helen Knaggs, PhD,* and R. Randall Wickett, PhD†, *Nu Skin Enterprises, †College of Pharmacy, University of Cincinnati
Genomics assists product developers in understanding the expression of specific genes and their relationship to particular skin attributes. This article reviews commonly used testing techniques, such as DNA microarray, RT-PCR, SAGE, northern blot and RNA sequencing, and describes their application in testing the effects of cosmetic ingredients and products on skin.
Dec 21, 2010
The International Organization for Standardization (ISO) has released an international standard that will assist the cosmetic industry in identifying those products that have a low potential for contamination.
Nov 30, 2010 | Mihaela Gorcea and Donna Laura, International Specialty Products (ISP)
This study assesses the physicochemical properties of four known cosmetic emollient esters in vitro to predict their sensorial benefits and correlate their properties with in vivo sensory attributes. This evaluation serves as a guide to selecting specific emollient esters for various cosmetic applications and to predicting their sensory attributes.
Fluorescence Laser Scanning Confocal Microscopy to Assess the Penetration of Low Molecular Protein Hydrolyzates Into Hair
Nov 1, 2010 | Olga Freis and Dominique Gauché, Laboratoires Sérobiologiques division of Cognis; and Ute Griesbach and Hans-Martin Haake, Cognis
The present study uses confocal laser scanning fluorescence microscopy to assess the penetration of protein hydrolyzates into hair. While higher amounts of protein were found in the cuticle, still significant quantities were observed in the cortical parts of hair, and this penetration was enhanced by longer incubation times.
Oct 7, 2010
Microtest Laboratories has posted a white paper on its website to help personal care product manufacturers understand microbial limits testing policies in accordance with the harmonization of the United States Pharmacopeia (USP), European Pharmacopeia (EP) and Japanese Pharmacopeia (JP) requirements.
Sep 22, 2010
Four test method evaluation reports are now available from ICCVAM that provide recommendations for performing eye safety testing more humanely, and for developing and using non-animal test methods and strategies. Among these reports, ICVAAM has recommended that a cytosensor microphysiometer (CM) test method may be used to screen surfactant-containing formulations such as personal care products for the ability to cause permanent or severe eye injuries.
Jul 30, 2010 | Philippe Mondon, Nada André, Emmanuel Doridot, Olga Gracioso and Karl Lintner, PhD, Sederma SAS
Aging influences cutaneous parameters that give rise to progressive changes in three skin chromophores, altering the visual homogeneity of skin. To address these changes, the authors developed and examined the effects of a complex based on Siegesbeckia orientalis and Rabdosia rubescens using a novel skin imaging technique.
Jul 14, 2010
Cosmetic companies have borrowed quality control methods from other industries that have product attributes such as color, gloss and texture down to a science. Specialized in such areas, X-Rite has developed tools to enable cosmetic companies to predict future color trends as well as set standards by which future cosmetics will be benchmarked.
Jul 9, 2010 | Johann Wiechers, PhD, JW Solutions
Here, industry expert Johann Wiechers, PhD, discusses the frequent use of percentages by toxicologists to calculate skin penetration. To relate this discussion to modern day events, Wiechers describes the skin penetration of orange paint, used by fans of the Dutch national football team.
Jun 25, 2010
This benchmarking study allows manufacturers to test hair products for conditioning, anti-breakage strengthening, and anti-static flyaway reduction with shared controls and labor to reduce costs by up to 57%. The company is accepting participants until Aug. 15, 2010.