Personal care products rheological properties

Because of the frequent use of personal care products by the consumer for hair, body, and skin care, rheological properties are designed to achieve product differentiation. Products are formulated to achieve efficacy within a definite matrix of rheological properties. Certain manufacturers lean toward lower viscosity systems, while others focus on a thicker, richer composition. Regardless of the rheology preference, formulators need to overcome obstacles to achieve robust product design, including variables such as pH and electrolyte concentration. 

Handbook of Cosmetic Microbiology, Donald S. Orth Rheological Properties of Cosmetics and Toiletries, edited by Dennis Laba Consumer Testing and Evaluation of Personal Care Products, Howard R. Moskowitz... 

In the area of personal care, solution rheology directly affects how a cosmetic product behaves. In this way, associative polymers can influence a cosmetic s aesthetic properties. Perhaps more importantly, they can influence the appearance of the product, the spreading behavior, the film thickness, and the feel of cosmetics from lotions to gels to shampoos. From the consumer s perspective, products that appear stringy (pituitous) or that ball up on application (pilling) are undesirable (72). Good viscosity control can impart a perceived increase in product concentration that the consumer considers beneficial. A low-viscosity product delivered from a bottle or pump is unacceptable, yet low-viscosity products are a necessity for products that are atomized (aerosols). In most cases, the viscosity manipulation is partly the result of appropriate polymer selection. 

Inc.], US), and is used in various personal care products. It has rheological properties, and unlike most natural and synthetic gums, has high thermal stability, is resistant to hydrolysis and retains skin moisture. 

Liquid detergent formulations covering the personal care and household care product categories exhibit a very wide range of rheological properties as shown in... 

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