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Patent Picks— HASE Rheology Modifiers, Elastomeric Silanes, Biodegradable Polymers, Color Changing, Extracting Soapberry and More for Cleansing

Chosen biweekly for their relevance to personal care, Patent Picks are taken from publicly available sources. This edition features patents related to cleansing the hair and skin.

Compass—Bring on the Bubbly!

Bubbles are an integral part of this issue of Cosmetics & Toiletries magazine—in the form of cleansing products and the ingredients employed therein.

Ingredient Profile—Sodium Lauroamphoacetate

The present column features one of the oldest and most well-known members of the amphoteric family: sodium lauroamphoacetate (SLAA).

Naturally Derived Rinse-off Concentrates and Emulsifiers

Stephenson Personal Care has launched two new lines—a line of multifunctional rinse-off concentrates, and a line of of oil and water soluble emulsifiers. Both Durosoft and Duroclens are derived from natural sources.

Recent Development in Gemini Surfactants

The unique properties of gemini surfactants continue to interest both academic and industrial chemists.

Surfactants and Interfacial Phenomena in Cosmetics and Detergency

An understanding of the behavior of surfactants and their interfacial phenomena in cosmetics processes will help formulators design better cosmetics.

PEG/PPG Dimethicone: A New Name for an Old Friend

Dimethicone copolyol surfactants are now called PEG/PPG dimethicone, a change that reflects their structure as polyethers of dimethicone. Properties of these chemicals are reviewed related to molecular weight.

Shampoo Surfactants: The Anionics

Understanding the structure function relationships of anionic surfactants will enable the formulator to achieve shampoo formulations that are well balanced, cost effective and functional.

Multi-Sensory Technologies for Today’s Effervescent Bath and Shower Products

Effervescent shower tablets, floating/foaming fizz and blooming bath oils arouse bathers’ olfactory, visual, tactile and auditory senses to new levels. Formulators and developers have novel options for creating new product concepts.

Decomposition of Disodium Lauyrlsulfosuccinate in Soap Bars Under Alkaline Conditions

The authors used kinetic experiments to track the heat-induced decomposition of disodium lauryl-sulfosuccinate during the manufacture of soap bars and compared the results with those of another soap surfactant, sodium cocoylisethionate.

Rheology Modifier for Textures in Cleansing Formulations

Rhodia has launched a rheology modifying polymer for personal cleansing solutions.

Researchers Disprove Resistance With Antibacterial Soap Use

A collaboration of researchers have reported that use of antibacterial soaps does not lead to antibiotic or antibacterial resistance.

PEG-free Solubilizer for Lipophilic Substances

Symrise has introduced a PEG-free solubilizer for lipophillic substances such as perfume, essential oils, actives and vitamins in pure aqueous and aqueous alcoholic product formulations.

John Carson

Lab Lessons—Wise Words From the Bench With John Carson

Today’s formulators must deliver unique products onto the market, and sustaining a long career in cosmetic formulating often means being able to create these innovative formulas for a number of product categories. No one understands this better than John Carson, who in his 40+ years in personal care formulation has created soaps, baby shampoos, sunscreens, antiperspirants and body washes, just to name a few.

Opacifier for Creamy Cleansing Applications

Dow Personal Care, a business unit of The Dow Chemical Company has launched an opacifier designed to create creamy, conditioning body washes, shampoos and liquid hand soaps.

Alternative Ingredients for Sustainable Shampoo Development

In this article, several ingredients are reviewed for development of sustainable shampoo formulations. Some of the functional ingredients reviewed are plant-based alternatives to existing, petro sourced ingredients while others are mild, sulfate-free and/ or ethoxylate-free alternatives to existing surfactant systems, thickening solutions for challenging media based on naturally derived polymers and efficacy boosters that reduce the use of non-renewable actives with equal benefit for the consumer.

Formula Anatomy Deciphered—Chelating Agents

The mechanism for chelation, described as a chelate complex, is based on multiple bonding (polydentate ligand) around a single central atom.

Cocamidopropyl Betaine

This paper presents methods for producing cocamidopropyl betaine (CAPB), an important secondary surfactant in cosmetic formulations, household cleaners, dish-washing agents and technical applications. However, with the widespread use of CAPB, more analytical methods to determine its contents and byproducts are needed. These authors thus describe methods to determine CAPB purity and other characteristics.