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Type: Article

Comparatively Speaking: Amphiphilic vs. Ionic Amphiphilic Molecule

Tony O'Lenick explains the difference between amphiphilic and ionic amphiphilic molecules, the interactions of which may help formulators to maximize the effectiveness of formulations.

Comparatively Speaking: Fatty Acids vs. Ozone Acids

Industry expert Tony O'Lenick describes the differences between the formation of fatty acids by saponification followed by acidulation, and ozone acid by the reaction of unsaturated acids with ozone.

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Comparatively Speaking: Patent Application vs. Issued Patent

Published patent applications, unlike an issued patent, have not been approved for issue but are made public, releasing the quo before the quid. Learn more in this edition of "Comparatively Speaking."

Coming Full Circle with Skin’s Circadian Rhythm

Coming Full Circle with Skin’s Circadian Rhythm

Nadine Pernodet, Ph.D. (NP), senior vice president, Biosciences, R&D for The Estée Lauder Cos., explains these dynamics in the following excerpt adapted from an interview.

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Telessence: Three Actives for a Complete Wellbeing

It is known in the cosmetic market that stress can have an impact on the skin’s appearance such as wrinkles, dull skin, loss of elasticity and firmness, redness, etc.—but is all stress the same? Discover Telessence.

Quality Comparison of W/O and O/W Photo-Protection Creams

The authors determined the quality of a photoprotector W/O cream by evaluating its microbial control, physicalchemical stability and sensory appeal in comparison to an O/W photo-protector cream.

Comparatively Speaking: Radical vs. Ring-opening Polymerization

Industry expert Tony O'Lenick discusses the differences in chemistry between radical polymerization and ring-opening polymerization.

Comparatively Speaking: Refractive Index vs. Optical Rotation

The refractive index, or index of refraction of a medium, is a measure by how much the speed of light is reduced when it travels within specific solvents. The speed of light traveling through a vacuum is defined as 1.000.

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Activating Epidermal Turnover with Comfrey Stem Cells

As human's age, skin renewal slows, leading to an uneven surface and the formation of scales. This has a negative influence on skin complexion and makes the skin look dull and grey. Instead of using irritating peeling procedures, Mibelle Biochemistry Group proposes an extract of comfrey stems cells, PhytoCellTec Symphytum, to address the root of the trouble.

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Comparatively Speaking: Gene vs. Protein Expression Studies

What is the difference between gene and protein expression studies to evaluate the efficacy of cosmetic products? Nava Dayan, Ph.D., explains in this edition of "Comparatively Speaking."

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Activating Epidermal Turnover with Comfrey Stem Cells

As human's age, skin renewal slows, leading to an uneven surface and the formation of scales. This has a negative influence on skin complexion and makes the skin look dull and grey. Instead of using irritating peeling procedures, Mibelle Biochemistry Group proposes an extract of comfrey stems cells, PhytoCellTec Symphytum, to address the root of the trouble.

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Comparatively Speaking: Cleaning, Sanitizing, Disinfecting and Sterilizing

Cleaning refers to the removal of organic materials while sanitizing, disinfecting and sterilizing refer to reducing viable microbes. Tony O'Lenick asks Rich Theiner for clarification, in this "Comparatively Speaking."

Comparatively Speaking: Naming Cosmetic Raw Materials

In this excerpt, Tony O'Lenick looks to Perry Romanowski to explain how cosmetic raw materials are named for the benefit of novice formulators.

Comparatively Speaking: Good vs. Bad Hair Color

Tony O’Lenick asks color expert Nick Morante to differentiate between a good hair color and a bad hair color, noting how water minerals, color-treated hair, bleaching and more can affect the final color.

From Plant Extracts to Novel Lipstick Compositions

Obayashi reviews the effects of plant extracts for photoaging skin. His review, with 20 references, covers the mechanism of photoaging and herbs with anti-photoaging activity.

Chitin Nanofibrils: A Natural Compound for Innovative Cosmeceuticals

Compared to larger-sized chitin particles, chitin nanofibrils can be hydrolyzed more easily by cutaneous enzymes, leading to applications such as rehydrating dry skin, augmenting cohesion of cells in the stratum corneum, and forming a protective biofilm that supports wound healing.

A Taste Receptor Blocker for Oral Hygiene Compositions

A hydrogenated, ethoxylated glycol ester reduces the harsh taste or burn sensation ordinarily imparted by the eucalyptol and the astringency ordinarily caused by the zinc salt in oral hygiene compositions.

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Comparatively Speaking: Humectants vs. Emollients vs. Occlusive Agents

The following excerpt is adapted with permission from an article by Kelly Dobos of Kao Corp., titled, "How Do Skin Moisturizers Work," which was featured on the Chemist's Corner. The article discusses how moisturizers work on skin with respect to the three main ingredient categories: humectants, emollients and occlusive agents.

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