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Recent in Testing (page 28 of 36)
Using In vivo and In vitro Testing for Evidence-based Development of Anti-aging Ingredients
Sponsored By: Contipro Biotech S.r.o.
Nov 12, 2013
The need for a conceptual approach to skin aging, the need to combine in vitro and in vivo findings and the new direction for cosmetic ingredient manufacturers are discussed here.
Non-animal Transdermal Diffusion Model Testing for Cosmetic Actives and Formulations
Sponsored By: EMD Millipore
Nov 12, 2013
Experience the unmatched predictability of Strat-M membrane—a synthetic, non-animal based model* for transdermal diffusion testing that is predictive of diffusion in human skin without lot-to-lot variability, safety and storage limitations.
CeeTox Inches Closer to Validating Non-Animal Skin Allergy Assay
Nov 7, 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.
IBN Engineers Hair Follicle Model for Development of Anti-hair loss Actives
Nov 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.
Anti-wrinkle Claims Substantiation
Nov 4, 2013 | Chris McLeod, HPCI media
Personal care is now dominated by want rather than need, and one facet at the crux of this trend is the taboo word of the century: wrinkles. As with the majority of cosmetic products and claims in the 21st century, product development teams aim to differentiate their products from competitors in one way or another, to create a successful brand and generate profit.
Analyzing Deposition from Rinse-off Hair Products
Nov 4, 2013 | Qing Huang, Zhen-Wu Mei, Koji Takata and Jianzhong Yang, Beauty & Health Innovation Co., Ltd.
The most common approach to determine ingredient deposition on hair is to analyze the treated tresses, but this poses several challenges. Instead, the authors describe a novel approach based on determining the amount of ingredient collected in the rinse water, and back-calculating the amount deposited on hair. Development and validation efforts discussed here use polydimethylsiloxane as a model compound.
Influence of Pressure During Spreading on UV Transmission Results
Nov 4, 2013 | Sébastien Miksa, Dominique Lutz and Céline Guy, HelioScreen Labs
This work evaluates the impact of applied pressure during sample spreading on the in vitro measurement of UV transmission. The authors work in a range of pressures between 50–200 g and demonstrate that pressure control is a key parameter that should be strictly controlled to ensure the reliability of test results.
Influence of Pressure During Spreading on UV Transmission Results
Nov 4, 2013 | Sébastien Miksa, Dominique Lutz and Céline Guy, HelioScreen Labs
This work evaluates the impact of applied pressure during sample spreading on the in vitro measurement of UV transmission. The authors work in a range of pressures between 50–200 g and demonstrate that pressure control is a key parameter that should be strictly controlled to ensure the reliability of test results.
Anti-wrinkle Claims Substantiation
Nov 4, 2013 | Chris McLeod, HPCI media
Personal care is now dominated by want rather than need, and one facet at the crux of this trend is the taboo word of the century: wrinkles. As with the majority of cosmetic products and claims in the 21st century, product development teams aim to differentiate their products from competitors in one way or another, to create a successful brand and generate profit.
In Vitro Methods to Test Materials for Ozone Protective Capabilities
Oct 28, 2013 | Robert Holtz, BioInnovation Laboratories
Many markers can be used to indicate epidermal stress. Therefore, it becomes clear that the skin is also a sensitive target to ozone exposure and one that could greatly benefit from cosmetic or personal care materials designed to protect against ozone.
Sensitive Skin Syndrome: Methodological Approaches
Oct 27, 2013 | Miranda Farage, PhD, Procter & Gamble, Cincinnati; and Howard Maibach, University of California School of Medicine, San Francisco
Manufacturers of topical products perform rigorous testing to assure their products are safe for consumers. Of particular interest is determining whether products will irritate the skin of the approximately 50% of consumers surveyed who consider themselves to have “sensitive” skin. The present article describes three such irritancy tests.
Measuring the Antioxidant Potential of an Acai Extract
Oct 24, 2013 | Karina Coyado Bispo, Beraca
The antioxidant potential of cosmetic materials can be evaluated by several methodologies, including a commercial kit that measures total antioxidant status, as illustrated here with a commercial extract from the fruit of the açaí, a Brazilian palm tree. Applications in antiaging products are suggested.
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