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Section: Cosmetic Ingredients > Cleansing

Comparatively Speaking: Wetting vs. Superwetting

In this edition of "Comparatively Speaking," industry expert Tony O'Lenick discusses the terms wetting and superwetting in relation to the ability of a surfactant to wet a substrate.

ChemistLabMolecule850

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: CMC vs. RF50

Industry expert Tony O'Lenick refers to his son and polymer scientist at the University of Tennessee, Thomas O'Lenick, to explain the difference between critical micelle concentration and reduction factor 50% (RF50) with regard to measuring silicone surfactant effectiveness.

Comparatively Speaking: Trisiloxane vs. Dimethicone Copolyol

In this edition of "Comparatively Speaking," industry expert Tony O'Lenick explains the difference in stability between dimethicone copolyols and trisiloxane, a class of dimethicone copolyols.

Pilot425

Pilot Chemical Company Expands CalBlend Line

Due to its high-foaming characteristics, it can be utilized in shampoos, body washes and liquid soaps.

Comparatively Speaking: Fatty Surfactant vs. Fluoro Surfactant

Industry expert Tony O'Lenick asks: What is the difference between a fatty surfactant and a fluoro surfactant? Bruce Baker of ICT Chemicals Inc. provides the answer.

Using hyaluronic acid, glycerin and retinol in a formulation can impart a variety of skin attributes such as include anti-aging, hyperpigmentation reduction, anti-acne, smoothing and an increase in water retention.

Formulating on Trend: Combining Humectants and Retinol

In this installment of "Formulating on Trend," the author explains how to combine humectants and retinol, and how the combination of hyaluronic acid, glycerin and retinol can impart a variety of skin benefits.

CT.com_scientist_at_bench

McIntyre Awarded Patent on Surfactant Compositions

McIntyre Group was awarded U.S. Patent No. 7,282,524 for its alkanolamide emulsion technology.

Comparatively Speaking: Aqueous Surfactant vs. Silicone Surfactant

Industry expert Anthony O'Lenick Jr. explains the difference between molecules that act like surfactants for aqueous systems versus oil systems.

PolymerMolecule850

Comparatively Speaking: Homologous vs. Analogous Polymers

What can we learn from the structure/function differences within a chemical family? In this installment of "Comparatively Speaking," Anthony J. O'Lenick, Jr., illustrates with a closer look at homologous vs. analogous polymers.

A Comprehensive Approach to Replacing DEA in Formulations

Once California added diethanolamine to the list of regulated chemicals in personal care formulations under Proposition 65, chemists immediately sought out surfactants that were free of DEA. Here is presented a roadmap for identifying the right solution to replace DEA-containing surfactants in personal care products.

Comparatively Speaking Alkyl Betaines Vs Amido Betaines

Comparatively Speaking: Alkyl Betaines vs. Amido Betaines

Industry expert Tony O'Lenick asks Robert Coots, Ph.D., to explain the difference between alkyl betaines and amido betaines, including their foaming properties.

Pseudo Nonionic Surfactant Complexes In Soap Bars

Pseudo-Nonionic Surfactant Complexes in Soap Bars

Pseudo-nonionic surfactant complexes formed between anionic and cationic surfactants improved physical and sensorial attributes of soap formulations. Two complexes are described; one more stable and the other having the lowest irritation potential.

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.

A Comprehensive Approach to Replacing DEA in Formulations

Once California added diethanolamine to the list of regulated chemicals in personal care formulations under Proposition 65, chemists immediately sought out surfactants that were free of DEA. Here is presented a roadmap for identifying the right solution to replace DEA-containing surfactants in personal care products.

Comparatively Speaking: Simple Salt vs. Ionic Liquid

Unlike common salts, ionic liquids are salts in which the ions are poorly coordinated, resulting in molecules that are liquid below 100°C. The use of ionic liquids will aid the formulator in improving delivery efficiency.

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Acme-Hardesty Company's Medium Chain Triglyceride (MCT)

Water surface

Comparatively Speaking: Surface Tension in Water vs. in Formulation

Many published studies of surfactants use pure surfactant in distilled water. However, a formulation is almost never a single surfactant in water. Here, industry expert Tony O'Lenick compares the surface tension of a surfactant added in water with that in a formulation.

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