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Section: Testing > Efficacy

Johann W. Wiechers, Ph.D.

Words from Wiechers: How Scientific is Cosmetic Science?

Academic versus commercial science are explored in this installment of our "Words from Wiechers" series. Here, O'Lenick reflects on Wiechers's view of science, additionally highlighting his omission of the end user's experience.

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Reverse Labeling is the Best Consumer Magnet Yet

"The Inkey List" line of premium skin care by Be for Beauty turns product labeling on its head.

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Letter to the Editor: 'Anti-pollution is Marketing Hype'

Here we go again, questioning the "anti-pollution" trend. Is it real? Is it hype? This Letter to the Editor has some valid points to the latter. We're also hosting a free, two-part webinar to help sort through it all. You decide.

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Data Confirms Symrise Deodorant Active is Microbiome-friendly

Symrise reports, in a first-of-its-kind study, the company's antiperspirant active was shown to be safe for the axillary microbiome.

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Skin Pigment Genetics is More Complex at the Equator

New research published in Cell presents genetic findings related to skin pigment diversity and complexity, further supporting the trend for customizable skin care.

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FDA Issues More Sanitizer Warnings, Posts Microbe-related Recalls

Sanitizer warning letters and "hotlist" additions, plus microbe-related recalls are among the latest cosmetic-relevant updates from the U.S. Food and Drug Administration.

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Synesthesia is Music to Our Feel and Taste Receptors

"One of the next (applications) we could see is whether music can improve or boost skin hydration."

The FDA has issued 15 warning letters to companies selling products containing CBD.

U.S. FDA Issues 15 Warning Letters Over CBD Products

“We remain concerned that some people wrongly think that the myriad of CBD products on the market, many of which are illegal, have been evaluated by the FDA and determined to be safe," said FDA principal deputy commissioner Amy Abernethy, M.D., Ph.D.

Whether the industry likes it or not, ingredients or finished formulas require claims substantiation, and neither suppliers nor customers can pass this responsibility on to one another.

Want the Truth: Claims Development is More Than Just Evidence.*

Both marketing and R&D have major responsibilities in the claims development process. But that’s not all—regulations, risk, vulnerabilities, communication, study design, costs and more also are at play. These and other influences in the claims development process are discussed in the present article.

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Is Your Microbiology Lab FDA-compliant? Part I: Personnel, Facilities and Equipment

This two-part article provides an overview of areas relevant to the U.S. Food and Drug Administration’s (FDA’s) inspection of cosmetic microbiology laboratories. Part II will appear in our July 2018 edition.

A new research project seeks to print hair follicles.

Can Hair Follicles Be Printed?

A new partnership between L'Oréal and Poietis is giving it a shot.

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Quantifying Visual Aspects of Hair

Quantitive claims regarding hair care can be questioned if the results and approaches do not equate to real life occurrences. This article highlights ongoing research efforts that aim to improve our understanding of visual evaluations of hair.

Maca root extract contains high levels of flavonolignans and glucosinolates that have reported anti-proliferative activity against several cancers.

Nutraceuticals Benefit Hair Wellness and Growth

A recent review published in Nutrients explored nutraceuticals to benefit hair wellness and growth especially in the context of endocrine therapy-induced hair loss in breast cancer patients.

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.

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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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2025 Will See Faster, More Ethical and Accurate SPF Testing: ISO Approves Two New Methods

In December 2024, the ISO gave its long-awaited final approval of two SPF test methods that experts say are more ethical, economical and accurate than current approaches. One in particular is also reportedly faster, reducing analysis from weeks to days.

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Is Your Microbiology Lab FDA-compliant? Part II: Cultures, Growth Media, Reagents and Testing

This two-part article provides an overview of areas relevant to the U.S. Food and Drug Administration’s (FDA’s) inspection of cosmetic microbiology laboratories. Part 1 covered personnel, facilities and equipment, test materials and procedures, and documentation. Part 2 addresses microbial cultures and growth media, biochemical reagents, test procedures and more.

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