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31 Results

Type: Article

Section: Testing > Sensory

Correlation of Long-term Physical Stability of Emulsions with the Short-term Rheological Measurements

Three short-term rheological measurements on some model personal care emulsions showed good correlation with long-term physical instability of the emulsions. Use of these rheological measurements can shorten the time to test the stability of new formulations.

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The Perplexing Topic of Hair 'Type': How Do We Classify Hair?

Most hair-related properties and issues can be rationalized by fiber size and shape, and/or the consequences of extreme conditions. However, the varying reactivity of different hair types with chemical treatments suggests potential differences in structure.

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.

IFSCC 2014 Explores Social, Psychological and Sensorial Aspects of Beauty

As one might expect from an event centered around beauty and staged in Paris, the 28th Congress of the International Societies of Cosmetic Chemists (IFSCC) was nothing less than fabulous. However, the glamour and fanfare was deeply rooted in science.

Johann W. Wiechers, Ph.D.

Words from Wiechers: The Power of Suggestion

In this edition of our Words from Wiechers series, the late author explains the power of belief in product efficacy—and why products should be evaluated based on the perceived value they deliver to consumers.

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Packaging: The ‘Silent Salesman’ of Cosmetics

Product packaging is nearly as important, if not more so, than the ingredients in it. This article examines a brief history, classes and properties of various types of packaging, and provides examples of the latest pack advances.

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Tools of the Trade for Sensory Testing

One challenge in manufacturing is the variance in quality of raw materials; another is the mixing process. Mechanical tests, described here in brief, will quickly identify cosmetics and lotions that should be rejected or reworked.

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Editor's Note: Health and 'Swell'ness

The consumer driver for health and wellness will no doubt flow into the New Year and beyond. As such, this issue takes inspiration from the spa world.

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Coiffed Conundrum: Equating the Measurement of Hair Shine

Shine constitutes the ability for light to reflect off of surfaces. For consumers, perceived shine is indicative of healthy hair. For marketers, it is the gateway to hair product benefits claims. But how can shine be measured to support those claims?

Evaluating the Physiochemical Properties of Emollient Esters for Cosmetic Use

This study assesses the physicochemical properties of four known cosmetic emollient esters in vitro to predict their sensorial benefits and correlate their properties with in vivo sensory attributes. This evaluation serves as a guide to selecting specific emollient esters for various cosmetic applications and to predicting their sensory attributes.

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A Sunny Proposition: The Effects of Sun on Hair

While not nearly as well-documented as skin, plenty of literature indicates the sun can have damaging effects on hair.

UV Transmission Assessment: Influence of Temperature on Substrate Surface

This work evaluates the impact of temperature on test substrate surfaces during the application, spreading and drying steps of the in vitro method to measure ultraviolet (UV) transmission. The authors work in a range between 20°C and 35°C, and demonstrate that controlling temperature is a key test parameter that should be strictly controlled to ensure reliability.

Quantifying Skin Relaxation and Well-Being

Skin relaxation and well-being can be measured by quantitative methods, and modulated by a Tyr-Arg neuropeptide used in topical cosmetic preparations.

Beautiful Young Woman Fun Unicorn Hair Purple Blue Curly Feel Touch Soft

Testing Trending Hair Care and Skinification Claims

Various test methods, some borrowed from skin care, can be used to validate hair product claims. This article reviews several, including conditioning, anti-breakage, hydration, skinification-related, damage repair, anti-dandruff, anti-hair loss and more.

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Comparatively Speaking: The INCI Names vs. Properties of Silicone Surfactants

Surface tension is a ruling factor in the formulator's world. In this edition of "Comparatively Speaking," Tony O'Lenick explains its influence on foam and wetting; he also demonstrates how little the INCI name reveals about a material's properties.

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Evaluating the Physiochemical Properties of Emollient Esters for Cosmetic Use

This study assesses the physicochemical properties of four known cosmetic emollient esters in vitro to predict their sensorial benefits and correlate their properties with in vivo sensory attributes. This evaluation serves as a guide to selecting specific emollient esters for various cosmetic applications and to predicting their sensory attributes.

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Stroke of Genius: Successive Combing Force Yields Realistic Conditioning Results

Combing tests are widely used to characterize the conditioning performance of products at one snapshot in time. A successive combing force device was designed to more realistically simulate the entire shampooing and conditioning process. Here, the authors put it to the test.

SoftFlowingShinyHair850

A Sense of Sensory Analysis: Testing for the Non-test Expert

Sensory analysis is an important tool that can be successfully applied to all products that impact our senses. This article provides an overview of the means with which formulators can become acquainted with the sensory properties of a cosmetic formula. By doing so, developers can ensure products fulfill consumer needs.

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