Recent in Formulating Aids (page 5 of 9)

Mild Corn-derived Thickener for Surfactant Irritancy Reduction

The Lubrizol Corp.’s Noveon Consumer Specialties has created a naturally derived, mild, nonionic thickener that is said to reduce surfactant irritancy while promoting rich lather.

Simple Solutions

this issue of Cosmetics & Toiletries magazine features articles that suggest how the right tweaks to some fundamental variables can improve formulations. O’Lenick and Lott, for instance, discuss how solvents can impact SPF values and describe a new ester to improve sunscreen efficacy

Microchannel Processing: A Novel Approach to Making Emulsions

In the present article, microchannel emulsification is explored as a process method that precisely adds a dispersed phase into a continuous phase through an engineered dispersion plate. This approach is shown to produce emulsions with smaller droplets having tighter size distributions than conventional means, which leads to stable products with the limited need, if any, for surfactants.

Naturally Derived Suspending Agents

J. Rettenmaier & Söhne GmbH has launched a range of water- dispersible organic hydrocolloids derived from wood fibers for application as suspending agents. Distributed by Gattefossé, the products are designed to improve the heat stability of gels and emulsions.

Comparatively Speaking: Sorbitan Esters vs. Sorbeth Esters

Industry expert Tony O'Lenick explains the difference between sorbitan esters and sorbeth esters to help the personal care formulator differentiate between their INCI names, emulsion stabilities and feel on the skin.

Pure, Low Odor Dimethyl Isorbide

Grant Industries has launched a pure, low-odor version of the solvent dimethyl isorbide.

Ingredient Profile—Polysorbate 20

Polyoxyethylene (20) sorbitan monolaurate (INCI: Polysorbate 20), is a ubiquitous nonionic surfactant employed in the formulation of countless cosmetic and personal care products.

Cassia-derived Polymers for Improved Silicone Deposition in Hair

The Lubrizol Corp.’s Noveon Consumer Specialties has introduced cassia-derived polymers for improved deposition, enhanced conditioning and distinctive sensory attributes in hair cleansing formulations.

Glyceryl Stearate Citrate Emulsifier Derived From Rapeseed

At In-cosmetics in Milan, Dr. Straetmans GmbH will launch a glyceryl stearate citrate emulsifier derived from rapeseed oil rather than palm oil.

Hydrolyzed Jojoba Esters to Potentiate Glycerin Moisturization

Hydrolyzed jojoba esters were incorporated into formulas including a lotion, hand sanitizer and nonwoven wipes. Small, well-controlled clinical studies were then conducted to compare the formulas with or without glycerin. Results show the esters can potentiate the skin moisturizing effect of glycerin under varying formula conditions. A mechanism of action also is discussed.

Ingredient Profile: Distearyldimethylammonium Chloride

Editor’s note: The content of the “Ingredient Profile” column is provided for informational purposes only and is not intended as legal, regulatory or ingredient safety guidance. The author assumes no responsibility for misuse of the information presented herein.

Photostabilization of Retinol and Retinyl Palmitate by Ethylhexyl Methoxycrylene

This study examines the photostability of retinol and retinyl palmitate, finding they break down rapidly when exposed to UV radiation in the 290–400 nm range. This severely reduces their concentrations in finished formulations. However, when combined with ethylhexyl methoxycrylene, these retinoids are shown to be protected against photodegradation, thus preserving their concentrations both during the manufacturing process and following application to the skin.

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