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Section: Research

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Comparatively Speaking: PPG vs. PEG

The chemistry of PEG, PPG or combinations thereof have an impact on the functional properties of formulas. Knowledge of these materials will help the chemist understand both the effects of reacting these materials on fatty alcohols as well as the performance of emulsifiers and wetting agents.

Comparatively Speaking: Density vs. Specific Gravity

This edition of "Comparatively Speaking" by industry expert Tony O'Lenick compares a product's density with its specific gravity, which are important measurements for formulators to understand especially when considering product specifications.

Comparatively Speaking: Oleophilic vs. Siliphilic

Industry expert Tony O'Lenick explains the difference between oleophilic and siliphilic.

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Comparatively Speaking: Inflammation vs. Allergy

Are you formulating for sensitive skin? Or is it really normal skin undergoing a typical inflammatory response? Where do allergic reactions fit in? In this edition of "Comparatively Speaking," Nava Dayan, Ph.D., explains.

Comparatively Speaking: Adsorption vs. Absorption

Tony O’Lenick explains the difference between absorption and adsorption for the benefit of novice formulators.

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Comparatively Speaking: Formulating by Numbers

What's the difference between a good and a great article? According to Tony O'Lenick, the latter gives readers the bottom line in a no-nonsense format. He illustrates with this "formulating by numbers" article, written around tables and geared toward chemists.

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Comparatively Speaking: Silicon Dioxide, Silicon and Silicone

This column is intended to provide an understanding of the relationships between these raw materials and the silicones found in personal care.

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Beauty Comes Clean: Free Ebook

Clean beauty aligns with various tenets: minimal ingredients, consumer safety, social responsibility, transparency, etc. This Clean Beauty Ebook, sponsored by Grant Industries, combines these approaches and more into one resource to guide product formulators. Download it today, it's free!

Combining retinol and CBD could decrease the irritating effects of retinol and allow the potent ingredient to be used at higher concentrations.

CBD & Retinol’s Powerful Combination Potential

Combining retinol and CBD could decrease the irritating effects of retinol and allow the potent ingredient to be used at higher concentrations, per an article from Well and Good.

Comparatively Speaking: Patent vs. Trade Secret

In this "Comparatively Speaking," Tony O'Lenick explains the difference between patents and trade secrets, both of which cosmetic chemists will encounter during their careers. This information will assist in determining whether a technology should be patented or maintained as a trade secret.

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Comparatively Speaking: Types of Flow Behavior

The following excerpt is adapted from an article by Kelly Dobos of Kao Corp. that discusses fluid viscosity of cosmetic products, specifically types of flow behavior, which can be used by the formulator to determine the rheological properties of formulations.

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Comparatively Speaking: Methicone, Dimethicone and D4

Silicone fluids, PEG/PPG dimethicone and alkyl dimethicone are three analogues, differing in the presence and type of groups in the polymer, but all having the dimethicone unit present. Learn more about their chemistry.

Comparatively Speaking: Emulsion vs. Invert Emulsion

Industry expert Tony O'Lenick explains the difference between an emulsion and an invert emulsion.

Comparatively Speaking: Density vs. Specific Gravity

Formulators often are faced with product specifications for which the tests are not chemical but physical. Oftentimes, the terms describing these physical traits are not clearly defined. Two such terms are density and specific gravity.

Comparatively Speaking: Carbomer vs. Alkyl Carbomer

Tony O’Lenick looks to Sergio R.S. Costa, of Chemflex Quimica, to explain the difference between carbomer, a series of polymers of acrylic acid, and alkyl carbomer, copolylmerized acrylic acid and alkyl acrylate.

Comparatively Speaking: The Meaning of Subscripts

In this look at chemical structures, Tony O'Lenick reviews the meaning of subscripts in the context of polymers.

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The INCI Name Game: A Commentary

When misinformed groups play in a technical space, nontechnically trained regulators make irrelevant rules, and INCI names are generalized and misused, you have the perfect storm for consumer confusion.

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Personalized Cosmetics: Has the Time Come?*

Personalized medicine, aided by advances including pharmacogenomics, is ready for mainstream clinical adoption. These authors suspect such techniques could be applicable for personalized cosmetics, complete with tolerance and efficacy considerations. Click through to the digital magazine to read more.

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