Most Popular in Testing
- In vivo Delivery Confirmation: Measuring the Deposition of Salicylic Acid from Anti-acne Face Wash
- Phthalates Study Raises More Concerns, ‘But Who Cares?’
- Wet Skin Factor for Sunscreens: An In vitro Method, Part I
- Wet Skin Factor for Sunscreens: An In vitro Method, Part II
- 'Zapping' Sensitive Skin: Capsaicin Tests Show Embelia concinna Comforts Irritation
- Evaluating 1,3-Propanediol for Potential Skin Effects
- How to Prove 'Rub-resistant' Sun Protection
- VIDEO: P&G Scientists on Claims Substantiation in Anti-dandruff Care
- Nonreactive Paths to Internal Changes: Modifying Hair’s Structure from the Inside, Part 2
- Heat Protection Getting Warmer: Specialty Silicones for Hair
Recent in Testing (page 11 of 32)
Sep 3, 2013 | Dennis Lott, Florida Suncare Testing, Inc.
Lab tests on sunscreens show it takes more energy to produce mild erythema on protected skin than unprotected skin. Yet the FDA questions the need for SPFs higher than 50. In response, two outdoor studies were conducted using commercial products to challenge standing premises and determine if there is a measurable difference in an SPF 100 and SPFs of 50 or less.
Sep 3, 2013 | Chris McLeod, HPCI Media
There are various test methods set by global governing bodies for SPF protection, but this article will discuss the five time-point internationally approved ISO 24444 method.
Aug 22, 2013
Endocrine disruptor chemicals (EDCs) are a class of chemicals that has raised alarm for being linked to a wide variety of detrimental effects on human and wildlife populations, e.g., cancers, precocious puberty and obesity. Thus, there is a need to test personal care products and supplements for EDCs, which can be accomplished using the validated bioassay described here.
Aug 21, 2013
This article reviews the mechanisms underlying skin irritation and sensitization, and methods used in a case study to test cosmetic products for their potential to cause irritation. It also covers the main skin conditions that can influence susceptibility to irritation, as well as ingredients affecting the mildness of cosmetic products.
Aug 20, 2013
Molecular modeling has been used in the pharmaceutical industry for years to predict how a new molecule may work based on research conducted with molecules of a similar structure. The cosmetics industry has also begun to use this technology to predict the behavior of new molecules on skin and in skin care applications.
Aug 20, 2013
Changes in the macroscopic nature of aqueous or colloidal formulations can lead to changes in the odor, appearance or feel of a product. Data presented in this article demonstrates ultrasound scanning to determine formulation shelf life and monitor product quality.
Aug 13, 2013
CeeTox has reported positive results from the recent phase of a PETA-funded validation study performed by the Flemish Institute for Technological Research (VITO)’s Applied BIO & Molecular Systems (ABS) team.
Aug 8, 2013
Here, the author compares two methods to determine the maturity of corneocytes based on their cross-linking that could be used to evaluate the anti-aging effects of molecular agents. The first utilizes microfluorometry, while the second involves F-D curves generated via contact mode AFM. Both methods successfully detected differences in mature or immature corneocytes with 95% confidence.
Aug 8, 2013
This article is the first in a series that will address the approaches of measuring the “strength” of hair and quantifying the manner by which this property may be altered. Specifically, it will begin with the generation of stress-strain curves through the use of constant rate extension experiments.
Aug 7, 2013
It should perhaps go without saying that consumer products are sold using consumer language. Market researchers and consumer scientists spend a great deal of time studying their target audience and learning this vocabulary, which subsequently allows the recounting of product benefits in the same terminology.
Aug 7, 2013
The Institute of Bioengineering and Nanotechnology (IBN) has recently engineered a new hair follicle model that could help discover new drugs or active ingredients for hair regeneration.
Aug 5, 2013
Welcome back to a continuing discussion regarding the new Registration, Evaluation and Authorization of Chemicals (REACH) regulation and its impact on chemical testing. It is the purpose of this series of articles to provide an overview of these existing validated in vitro methods, as well as new methods that are being considered for validation.