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Type: Article

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.

Narcissus Tazetta and Schizandra Chinensis to Regulate ‘Youth Gene Clusters’—An In vitro Analysis

A blend of Narcissus tazetta bulb and Schizandra chinensis fruit extracts was developed for anti-aging benefits and tested for efficacy on a human skin equivalent. Results indicate it regulates the functions of youth gene clusters by increasing the activities found in younger skin and reducing the activities found in aging skin specific to structure, hydration, cellular proliferation and pigmentation.

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.

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[reader favorite] Comparatively Speaking: Shampoo vs. Body Wash Formulation

For some time now, the following article from Tony O’Lenick and David Zhang, Ph.D., has drawn frequent reader interaction on CosmeticsandToiletries.com. Considering its overwhelming popularity and relevance to this month’s topic, it seemed appropriate to include here, for your consideration.

Safety and Efficacy of Microfine Titanium Dioxide

Modern microfine TiO2 products attenuate both UVA and UVB. The ingredient is practically chemically inert and “non-penetrating” and can be regarded a safe cosmetic raw material.

The Safety Factor in Preservative Efficacy Testing

The authors explain how preservative efficacy testing is done to determine whether a formula is adequately preserved. Product contamination problems are frequently caused by inadequate preservation.

Cosmetic Safety: Public Perception and Scientific Reality

As far as the public is concerned, hypothetical risks are real. And if anyone studies a chemical in depth, they can find some effect but whether it should be removed from the market comes down to a risk-benefit analysis. Cosmetic formulation is a continuous process of keeping in step with research, and when a true risk emerges, addressing it.

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CIR Conclusion: Judging Natural vs. Synthetic Safety

Several naturally derived ingredients are on the Cosmetic Ingredient Review’s (CIR's) list for consideration in 2019. This column explores how public opinion is not always in line with science, as far as what natural means. In addition, it provides CIR conclusions from December 2018.

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Chemical Safety and Registration, REACH and More

EU and UK REACH regulations and differences between regions are discussed in this regulatory update. Additional topics include chemical safety, non-animal test methodologies and PFAS, and EU and UK actions taken.

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Is it Toxic? EU Mandate, Part 10: Safety

For each cosmetic product placed on the EU market, a safety evaluation must be performed. This includes a review of the toxicological profile of its ingredients, with a particular focus on genotoxicity. This mandate is described here.

Tigi Bedhead Colour Combat Colour Goddess Shampoo

Read the Label Online: Tigi's Bedhead Colour Combat Colour Goddess Shampoo

This online-only "Read the Label" reviews finished products to discuss why specific ingredients were used in the formulations. Here, Tigi's Bedhead Colour Combat Colour Goddess Shampoo is discussed.

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A Sense of Sensory Analysis: Testing for the Non-test Expert

Sensory analysis is an important tool that can be successfully applied to all products that impact our senses. This article provides an overview of the means with which formulators can become acquainted with the sensory properties of a cosmetic formula. By doing so, developers can ensure products fulfill consumer needs.

Comparatively Speaking: Cocamide DEA vs. MEA vs. DIPA in Shampoos

Tony O’Lenick asks Bob Coots, PhD, of Colonial Chemical Inc., "What is the difference between cocamide DEA, MEA or DIPA when used in shampoos?"

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Comparatively Speaking: Complexation vs. Coacervation in 2-in-1 Shampoos

Hair care traditionally involves cleansing with anionic or amphoteric surfactants, rinsing, then using a conditioner with cationic surfactant and cetyl and stearyl alcohol. Combining these as 2-in-1 products is not easy but complexation and coacervation approaches can achieve such.

Silicone Safety and the Cosmetic Industry

The use of silicones in personal care products continues to expand because of the unique performance attributes they provide and their well-established record of safety. As a result, progressively larger volumes of silicones are being released to the environment, and interest in their life cycle has increased. The present article summarizes relevant fundamental chemical and physical properties of silicones and how these relate to material performance, safety and environmental fate.

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Standardizing Safety: ISO Validation and Sun Protection Tests

In addition, methods under review pertaining to sun protection are discussed. The ISO sets proposed standards and test methods for nearly every industry; its validation process is described here.

EU Regulation No. 1223/2009 Part 1: Product Safety

The European Union (EU) has published the long-awaited Regulation No. 1223/2009 on Dec. 22, 2009. At 151 pages, it is a lengthy read and when it goes into effect on July 11, 2013, it will make the EU the most highly regulated cosmetics industry in the world.

Nanomaterials in Personal Care: Opportunities and Safety Considerations

So what exactly is nanotechnology and what are its applications in cosmetics and personal care? Nanotechnology is one of those terms that most think they understand—in the scientific community, at least—but for which most would struggle to provide a precise definition.

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