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72 Results

Section: Testing > Microbiology

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Patent Pick: Bacteria vs. Bacteria Clash Over Acne

In the acne battle, science has gotten smarter. It has gathered new intelligence on the enemy, and is directing covert operations to neutralize the source. In fact, this patent application arms rebel bacteria to do the "dirty work," on-site.

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Patent Pick: Unilever Takes Charge of Cleansing, Literally

There's a battle ensuing between microbes and anti-microbes that transcends the physical skin barrier to a larger, regulatory one. Regardless, Unilever inventors are charging ahead utilizing electrons to enhance the power of oligodynamic metals.

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Armpit Malodor: Who Are You Wearing?

Microbiome transplants have been all over recent headlines to treat everything from the symptoms of autism and Parkinson's to diet failure. Now, researchers from Ghent University and the University of California look to expand their use to address armpit malodor.

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Alternative Preservation Spectrastat™ Series

The Spectrastat™ Series may be used in anhydrous and surfactant systems, and emulsions. All are completed, high-performing systems that pass challenge tests every time.

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[video] How Antibacterial Cleansers Led to Preservatives in Cosmetics

This seventh and final video in our triclosan series with David Steinberg gives the history of how contaminated antibacterial cleansers led to safely preserved cosmetics. It also highlights how preservative-free and natural movements are unraveling product safety.

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Smell That? Neither Do Beiersdorf Researchers

Beiersdorf researchers have developed a deodorant based on polyquaternium-16 that decreased the production of axillary bacteria, in turn reducing malodor. So no, there's nothing to smell here (but innovation).

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Solving the Mystery of Natural Product Preservation

Personal care formulators are aware that “natural” products can be difficult to preserve, but they may not be aware of all of the underlying reasons. The experts at schülke have solved the mystery, using non-traditional preservative systems to preserve natural products. Find out how schülke can solve your Natural Product Preservation mystery

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Q Laboratories Announces Four New Appointments

The microbiology and analytical chemistry company has announced the appointment of four new leadership positions.

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When Acne Attacks, Hexylresorcinol and Ethyl Linoleate Fight Back: Experimental (part II)

Although P. acnes is a commensal bacterium of normal skin, together with the sebaceous gland, it clearly is implicated in acne. Here, P. acnes and other possible causes are reviewed, and a hexylresorcinol and ethyl linoleate anti-acne treatment to target them is described.

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When Acne Attacks, Hexylresorcinol and Ethyl Linoleate Fight Back (part I)

Although P. acnes is a commensal bacterium of normal skin, together with the sebaceous gland, it clearly is implicated in acne. Here, P. acnes and other possible causes are reviewed, and a hexylresorcinol and ethyl linoleate anti-acne treatment to target them is described.

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Frequency of Preservative Use Update Through 2014

It has been four years since this author last reviewed the preservatives being used in U.S. and Canadian cosmetics. Since then, continuing attacks on preservatives, MIT, triclosan and others have kept formulators scrambling. This report discusses some of these attacks and compares numbers, to see what impact these attacks have had.

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Purdue Scientist Refines Potential Natural Paraben Replacement

Visiting scientist German Schäfer has been working at Purdue University to refine all-natural preservatives and antioxidants derived from Solanum superfruits. For use in cosmetics, these ingredients will be commercialized through his company, BioProcol.

Patent Pick: Rapid Microbe Detection

Patent Picks are compiled by the editors from publicly available sources. Today's invention describes an approach for rapid microbe detection in product samples.

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Patent Picks—Microbe Separation, Emulsion Arrays and Salicylic Acid Delivery From Powder

Patent Picks are compiled by the editors from publicly available sources. This edition features processes for identifying microorganisms, forming emulsion arrays and delivering salicylic acid from powder.

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Free Formaldehyde Preservative Stability in Personal Care: Part I—Water

As scrutiny of formaldehyde-donor (FD) and other preservative technologies has increased in recent years, additional assurances of the relative safety and benefits of FD technologies are required. This two-part article examines the effects of temperature and pH on free-formaldehyde levels (as detected by C-13 NMR), first in water, then in personal care formulations.

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Free Formaldehyde Preservative Stability in Personal Care: Part II—Formulations

As scrutiny of formaldehyde-donor (FD) and other preservative technologies has increased in recent years, additional assurances of the relative safety and benefits of FD technologies are required. This two-part article examines the effects of temperature and pH on free-formaldehyde levels (as detected by C-13 NMR), first in water, then in personal care formulations.

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Natural vs. Synthetic Antimicrobials and HDAC as an Indicator of Microflora Health

This article reviews the role of skin microflora in protecting skin, and assesses how the histone deacetylase (HDAC) enzyme is implicated. From this, HDAC expression is used as an indicator to compare the effects of traditional biocides and preservatives with natural antimicrobials on skin’s microbiome. Results suggest the latter effectively preserve products while maintaining a healthy microbiome.

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Proposed Method to Evaluate the Microbiological Stability of Cosmetics During Use

The authors propose an approach to assess the microbial stability of a product during use, referred to as the Microbiological Use Test (MUT), and apply this analysis in case studies to predict the microbiological risk of commercial products. The described test has been used successfully in the development of cosmetics.

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