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Section: Testing

Article Download: A Laboratory Method for Measuring the Water Resistance of Sunscreens

Advanced Methods Measure Skin Penetrants at the Parts-Per-Billion Level: Part II

Part I of this Dermatologic View column appeared in the January issue of C&T magazine and described advanced methods to measure skin penetration such as Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) and Atomic Absorption Spectrophotometry (AAS). Here, the authors continue this investigation of advanced methods to measure skin penetration.

Fluorescence Lscm To Assess The Penetration Of Low Molecular Protein Hydrolyzates Into Hair

Fluorescence LSCM to Assess the Penetration of Low Molecular Protein Hydrolyzates Into Hair

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.

'Canada's legislation is expected to pass soon and, when it does, the United States will be the only country in North America without a national ban on animal testing for cosmetics.'

Canada Commits to End Animal Tox Testing While MoCRA Misses the Mark

Bill S-5 in Canada has passed with royal assent to end animal testing for chemical toxicity; cosmetics are expected to be next. Meanwhile, MoCRA in the U.S. missed the chance to address this major industry issue, one source critiques.

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Detecting the Protective Power of a Hair Health Multi-peptide: An Integrated Approach

This work measures the antioxidant potential of a hydrolyzed cicer seed extract, a multi-peptide derived from chickpeas, to protect hair. Advanced methods such as FTIR, DCFH-DA assays, cyclic fatigue and DSC testing are combined for a comprehensive view.

France is the first country in the EU to export its “ordinary” cosmetics to China without testing on animals.

'Ordinary' French Cosmetics Become the First to Bypass China’s Animal Testing Mandate

France has become the first country in the EU to export “ordinary” cosmetics to China without testing on animals.

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Patent Pick: Move Over, Oxidizers, Titanium Salts are the New Hair Dye Heroes

Oxidizers have met their match, if you believe these L'Orél inventors. In this patent application, titanium salts are offered as the basis for natural and powerful hair dyes, without the need for oxidizing agents.

(Depiction only) The new method uses the spectroradiometric measurement of residual UV from a single pre-irradiation dose through a thin layer of sunscreen applied to a multi-layer substrate.

7 Years in the Making: CE Recommends In vitro SPF Double Plate Test Method

"... No in vitro method had [previously] advanced to the stage that CE could recommend it. So those who did not want to use an in vivo method could use any ... unvalidated method; this should no longer be the case."

Image Processing and Analysis to Evaluate the Effects of Porous Polyamide Microspheres in Cosmetics

Described here is an image processing system that compensates for changes in illumination and volunteer position, and two algorithms to quantify skin texture and wrinkles. These methods evaluate skin parameters from a single image without contacting skin. Their abilities are demonstrated here in evaluations of the benefits of porous polyamide ultra-fine powders on skin texture and gloss.

The present study examined the effects of commercially available jojoba esters in liquid, natural jojoba-like form in three studies measuring irritation mitigation, skin hydration and soothing properties.

Jojoba Oil Esters Ease Inflammation, Sensitivity and Water Loss from Skin and the Environment

Water scarcity has become a major concern and jojoba is known to flourish under controlled low water conditions. As such, jojoba wax esters were explored for skin care to reduce inflammation and sensitivity and to provide hydration over a 24-hr period.

‘How Did THAT Get in There?’ Identifying Particulate Contamination in Products and Packaging

Particulate contamination and discoloration may occur in products due to foreign materials introduced via raw materials or during the manufacturing process. Agglomeration or reactions between ingredients and packaging components also are possible sources. The identification of contaminants and their origin, described here, is therefore critical so that future incidents can be prevented and safety or regulatory concerns can be addressed.

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[video] That's A Wrap: Top News the Week of 7/7/17 from Cosmetics & Toiletries

SIK inhibition for self-tanning? And protection against thermal aging? If you missed this week's news from Cosmetics & Toiletries, you missed out. Check out our video re-cap.

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Is This the Tail End of Animal Testing for Cosmetics and Personal Care?

With awareness of animal testing rising--due in part to conversations via social media and an influx of companies granting "cruelty-free" wishes--brands that are slow to omit animal testing may see consumers opting for other products they know have never been tested on animals.

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Shrinking Pores at Their Core: Gallic Acid Derivate Controls ROS and Sebum Factors

This study proposes a unique molecule derived from gallic acid to prevent enlarged and clogged facial pores. The ingredient is partly activated by the microbiome and protects against oxidative stress and excess sebum—two key factors at the core of enlarged pores.

A Dermatological View—Squamometry: An Early Predictor of Changes in the Skin Barrier

Squamometry is useful in identifying the low or subclinical irritation potential of substances even before any change in the TEWL can be measured.

Using Tissue Engineered Skin to Eveluate the Irritation Potential of Skin Care Products

Using tissue engineered skin to evaluate the irritation potential of skin care products.

‘How Did THAT Get in There?’ Identifying Particulate Contamination in Products and Packaging

Particulate contamination and discoloration may occur in products due to foreign materials introduced via raw materials or during the manufacturing process. Agglomeration or reactions between ingredients and packaging components also are possible sources. The identification of contaminants and their origin, described here, is therefore critical so that future incidents can be prevented and safety or regulatory concerns can be addressed.

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The Many Faces of Microemulsions: Converting Challenges to Step-change Opportunities, part II

Microemulsions present a means to convert the challenges faced by the personal care industry into step-change opportunities. This review considers the features of microemulsions, their applications and various means of preparing them.

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