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Type: Article

Section: Cosmetic Ingredients > Rheology/Thickener

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Linking Sensory and Rheology Characteristics

The authors introduce a method to use rheological properties (such as dynamic viscosity and yield stress) to describe and predict skin sensory attributes (such as cohesiveness) of cosmetic products. This is a first step in learning to use emulsion structure to predict sensory attributes.

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Addressing Tooth Sensitivity and Dental Erosion

While the introduction of fluoride remarkably increased the life expectancy of natural teeth, two oral care problems have since emerged: tooth sensitivity and dental erosion. This article describes approaches to these problems and discusses the challenge of simultaneously maintaining fluoride efficacy in multi-benefit toothpaste formulations.

Viscosity, Dispersion and More in Mascara

Cosmetic formulators are constantly challenged to develop products for daily use, and mascaras in particular are one of the most researched (and scrutinized) products a woman can purchase. Scientists must go to great lengths to ensure this miracle product delivers on the eyelash benefits it advertises.

Nonaqueous Emulsions: History and Current Specialized Applications

Since the early 1980s, nonaqueous emulsions have attracted technical interest as potential vehicles and delivery systems for personal care products. This is due to the development of a broad range of silicone-based emulsifiers, silicone polymers and other polymeric emulsifiers that have enabled their use. This article will briefly review their history and evolution into current-day specialized applications.

Nonaqueous Emulsions: History and Current Specialized Applications

Since the early 1980s, nonaqueous emulsions have attracted technical interest as potential vehicles and delivery systems for personal care products. This is due to the development of a broad range of silicone-based emulsifiers, silicone polymers and other polymeric emulsifiers that have enabled their use. This article will briefly review their history and evolution into current-day specialized applications.

In evaluating how different solvents may affect the rheology of personal care formulas, it is helpful to consider that different formulation types have distinct relationships between viscosity and elasticity depending on the factors generating their elastic properties.

How Natural Butylene Glycol Advances Market and Rheology Dynamics

Demand for sustainable ingredients in cosmetics and personal care is well-known. Here, a sustainable natural butylene glycol is described to advance this trend and its effects on viscosity and elasticity are assessed in five test formulas.

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Health Food and Personal Care: A Virtuous Circle

Formulators in both the personal care and health food industries often draw inspiration from one another and take advantage of newly popular ingredients’ healthy reputations. One recent trend brought about by consumers’ desire to eat healthy is the popularity of complex starches as a replacement for refined flour and simple sugars.

Polymers for Thickening and Aesthetics of Surfactant Systems

In the presented study, researchers suggest that acrylates/aminoacrylates/C10-30 alkyl PEG-20 itaconate copolymer serves to stabilize hydroxypropyl starch phosphate polymer in surfactant systems, and also enables hydroxypropyl starch phosphate polymer to further build viscosity.

Approaches to Address Tooth Sensitivity and Dental Erosion

While the introduction of fluoride remarkably increased the life expectancy of natural teeth, two oral care problems have since emerged: tooth sensitivity and dental erosion. This article describes approaches to these problems and discusses the challenge of simultaneously maintaining fluoride efficacy in multi-benefit toothpaste formulations.

Polyacrylate-33 for Thickening and Suspending in Low Surfactant Cleansers

Described herein is a hydrophobically-modified acrylic copolymer, polyacrylate-33, which is designed for low-to-medium surfactant-containing cleansers. The ingredient is shown to display high thickening efficiency and good suspension properties and shear-thinning rheology in sulfate-based and sulfate-free chassis. Further, it enables transparent formulations in the presence of salt with improved foaming and sensorial properties.

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Polyacrylate-33 for Thickening and Suspending in Low Surfactant Cleansers

Described herein is a hydrophobically-modified acrylic copolymer, polyacrylate-33, which is designed for low-to-medium surfactant-containing cleansers. The ingredient is shown to display high thickening efficiency and good suspension properties and shear-thinning rheology in sulfate-based and sulfate-free chassis. Further, it enables transparent formulations in the presence of salt with improved foaming and sensorial properties.

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Build the Basics, Optimize Products, Formulate Naturals and Penetrate Skin

In addition to courses for the beginning chemist, natural products and optimization of formulas, Cosmetics & Toiletries has added Physiology of the Skin, featuring Zoe Diana Draelos, MD, to its online training program. Buy at Suppliers' Day and save! Visit booth 1345.

Patent Picks— Emolliency, Antioxidant, Colorstay and Styling Benefits in Hair

Patent Picks are taken from publicly available sources. This edition features patents related to hair care, including hair styling, conditioning, colorstay and more.

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Binding Water in 3D: Cellulose Networks for Texture and Sensory Benefits

This article explores a natural raw material sustainably produced from cellulose that improves rheological and sensory properties in cosmetic products. Here, it is tested for matte effects in a face cream, for hair conditioning to reduce combing forces, and for viscosity recovery in sunscreen sprays.

Patent Picks—Oxygenation, Self-heating, Anti-stress and More in Cleansing

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

Correlating the Structure and Rheology of Lamellar Liquid Crystalline Phases in Emulsions

This paper describes the correlation between the structure of liquid crystalline phases in emulsions and their rheological characteristics. An oleosome/lipophilic liquid crystalline-forming system and hydrosome/hydrophilic liquid crystalline-forming system were investigated. At the same high shear rate viscosity, the oleosome-system showed less thixotropy and rapid recovery when compared with the hydrosome-system.

Patent Picks—Vibrating Mascara; 'Fracking' Polymers; Thickening Oil Phases; and More 'Rheology' Patents

Patent Picks are compiled by the editors from publicly available sources. This edition features inventions related to rheology and thickening: from vibrating mascara to improve its viscosity during application, gel networks to thicken oral care, and natural oil polyester thickeners, to a "fracking" rheology modifier, composition to thicken ionic oil phases and more.

A total ban across the entire class of PFAS would be disruptive without any basis in science. A more deliberate approach would better suit public policy.

Why a Ban on PFAS Across Cosmetics and Other Industries Right Now is Misguided [opinion]

The wide use of forever chemicals across cosmetics and other industries and their persistence have opened them to scrutiny. But banning the entire PFAS class would be disruptive without any basis in science or good public policy. Why? Read on to see.

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