Search Cosmetics & Toiletries: Page 5

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Section: Testing

Researchers Develop Hair Counting Software

The company's software uses images captured by a small flatbed scanner pressed onto the skin.

The hair scientist is indeed fortunate that his/her test substrate is so readily available in such specific forms, but the variability of this material again must be emphasized.

Hair as a Test Substrate

Hair is a distinctly variable material, and the nature of this substrate can have a major impact on laboratory test results. This article discusses hair as a laboratory substrate to provide guidance on minimizing variability and creating optimal test conditions.

Analyzing Deposition from Rinse-off Hair Products

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.

Hair Ethnicity and Ellipticity: A Preliminary Study

Ethnic hair care addresses diverse fiber compositions that require unique products. This comprehensive review in hair fiber dimensions among straight, wavy and curly/coily hair serves as a basis from which product developers can design products to cater to unique hair type needs. The current study examines the ellipticity of Caucasian, Brazilian, Hispanic and African-American hair.

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Industry Insight: Antibacterial Functionality Enters Hair Care

In this "Industry Insight," Lisa Marie Garcia (LMG), president of innovation, and Roy Joseph, Ph.D., chief scientific officer and vice president of R&D, both of Farouk Systems, discussed changes in the hair care market in light of the pandemic and their company’s antibacterial line. Following is an excerpt adapted from our discussion.

'[Sunscreen] developers will be able to innovate more efficiently while maintaining high standards of quality and safety for consumers.'

[update] How ISO's Endorsement of Two Test Methods Will Enlighten Sunscreen Development

After 10 years, sunscreen developers are nearing the finish line for more ethical, cost efficient, reliable and faster testing thanks to ISO's endorsement of two standards. The final vote was in September 2024. Here, two experts explain what this means.

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Expert Opinions: Making Waves in Hair

Featuring insights on genomics, Big Data, personalization, consumer gaps, wellness, waterless forms, scalp care and more, this crowd-sourced collection of "Expert Opinions" is all about advances in hair care. Click through to the digital magazine for the complete article.

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Modifying Hair’s Structure From the Inside

Changing hair properties is a regular function of daily-use treatments. But what other methods can be used? Altering the hair’s internal structure may be the next way to achieve these changes.

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Why the FDA's 'Sunscreens in the Bloodstream' Study is Flawed

A recent study published in the Journal of the American Medical Association tested the potential systemic absorption of certain sunscreens. Results identified their presence in subjects' bloodstreams; however, as industry expert David Steinberg explains, the study is misleading and fails to consider crucial variables.

IBA's statement comes after the launch of the social media video 'Save Ralph.' Photo: The Humane Society International.

IBA Responds to 'Save Ralph," Issues Statement Against Animal Testing

The IBA has issued a statement in support of the complete elimination of animal testing for establishing the safety of cosmetics.

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Measuring Tack in Hair Styling Products

Researchers from Technische Universität München have reported on a technique to measure the effects of different ingredients and environmental conditions on the tackiness of hair styling products.

Measuring Hair Strength, Part II: Fiber Breakage

In the mechanical testing world, the tendency for materials to fail under a repeated stimulus is termed fatigue testing, and this article discusses this topic in relation to hair breakage. It will be shown that this alternative testing approach provides considerable insight into the cause of hair breakage, and subsequently allows for the identification of strategies for its minimization; it will also be demonstrated how learning this provides the underlying theory by which anti-breakage and even “strengthening” claims are crafted.

[podcast] Biggest Consumer Concerns in Hair

"Today’s concerns are the same as they always have been," says Trefor Evans, Ph.D. "Although every now and then, a new attribute comes along." Learn more in this exclusive podcast and at the TRI-Princeton International Conference on Applied Hair Science.

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Ingredients Leave Hair Irresistible & Skin Revived

Givaudan has launched a couple new ingredients. One ingredient helps enhance hair in a variety of ways, while the other ingredient benefits skin in a holistic way.

Using Texture Analysis to Substantiate Hair Care Claims

Texture analysis provides quantitative information about a material’s response when deformed by a controlled force. When texture analysis is applied to hair treated with various conditioners and styling fixatives, the results can help substantiate claims made about the effectiveness of these hair care products.

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Adaptive Measures: Translating UV Protection to Hair Claims

To test preventative hair care treatments against UV damage, sensitive techniques are required. Here, DSC was used to define a ratio between artificial and natural irradiance levels; from this, methods were built to substantiate claims for UV protection in hair.

Literature Review: Damage, Growth and Conditioning in Hair

This survey of recent literature relates to assessing hair damage, reducing dye allergy, increasing and inhibiting hair growth, cleansing and conditioning hair, and more. The papers are presented as food for thought in the early stages of the product development process, and may warrant deeper investigation.

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Coiffed Conundrum: Equating the Measurement of Hair Shine

Shine constitutes the ability for light to reflect off of surfaces. For consumers, perceived shine is indicative of healthy hair. For marketers, it is the gateway to hair product benefits claims. But how can shine be measured to support those claims?

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